A neon flashlight cell with an emf of 1.5V gives a current of 15A when connected directly to an ammeter of resistance 0.04?. Internal resistance of the cell is a. 0.0004? b. 0.06? c. 0.10? d. 0.13?

A neon flashlight cell with an emf of 1.5V gives a current of 15A when connected directly to an
ammeter of resistance 0.04?. Internal resistance of the cell is
a. 0.0004? b. 0.06?
c. 0.10? d. 0.13?
by

1 Answer

Answer :

b. 0.06?
by

Related questions

A galvanometer of 65 Ω resistance gives full scale deflection with 4 mA current. In order to convert it into ammeter, the range of 10 A is connected with it, the shunt resistance should be a) 0.1 Ω b) 0.2 Ω c) 0.06 Ω d) 0.03 Ω

Description : A galvanometer of 65 Ω resistance gives full scale deflection with 4 mA current. In order to convert it into ammeter, the range of 10 A is connected with it, the shunt resistance should be a) 0.1 Ω b) 0.2 Ω c) 0.06 Ω d) 0.03 Ω

Last Answer : d) 0.03 Ω

Terminal potential difference of a battery is greater than its emf when a. the internal resistance of battery is infinite b. the internal resistance of battery is zero c. the battery is charged d. the battery is discharged

Description : Terminal potential difference of a battery is greater than its emf when a. the internal resistance of battery is infinite b. the internal resistance of battery is zero c. the battery is charged d. the battery is discharged

Last Answer : c. the battery is charged

In the circuit shown in Fig. 4.64, the battery has an emf of 12.0 V and an internal resistance of `5R//11`. If the ammeter reads 2.0 A, what is the va

Description : In the circuit shown in Fig. 4.64, the battery has an emf of 12.0 V and an internal resistance of `5R//11`. If the ammeter reads 2.0 A, what is the va

Last Answer : In the circuit shown in Fig. 4.64, the battery has an emf of 12.0 V and an internal resistance of ` ... ammeter reads 2.0 A, what is the value of R ?

10 cells, each of internal resistance `0.5 Omega` and 1.2 V emf are connected (a) all in series and (b) all in paralle. Calculate the current sent in

Description : 10 cells, each of internal resistance `0.5 Omega` and 1.2 V emf are connected (a) all in series and (b) all in paralle. Calculate the current sent in

Last Answer : 10 cells, each of internal resistance `0.5 Omega` and 1.2 V emf are connected (a) all in ... each case through a wire of resistance `0.8 Omega`.

The current flowing in a coil due to induced emf depends upon: a. shape of coil b. resistance of coil c. area of coil d. magnetic flux

Description : The current flowing in a coil due to induced emf depends upon: a. shape of coil b. resistance of coil c. area of coil d. magnetic flux

Last Answer : a. shape of coil

24 cells of emf `1.5 V` each having internal resistance of 1 ohm are connected to an external resistance of `1.5` ohms. To get maximum current,

Description : 24 cells of emf `1.5 V` each having internal resistance of 1 ohm are connected to an external resistance of `1.5` ohms. To get maximum current,

Last Answer : 24 cells of emf `1.5 V` each having internal resistance of 1 ohm are connected to an external ... in series and 4 such rows are connected in parallel

Four cells, each of emf E and internal resistance r, are connected in series across an external resistance reverse. Then, the current in the external

Description : Four cells, each of emf E and internal resistance r, are connected in series across an external resistance reverse. Then, the current in the external

Last Answer : Four cells, each of emf E and internal resistance r, are connected in series across an external resistance reverse. Then, ... (3r+R)` D. `(2E)/(3r+R)`

A battery of emf E has an internal resistance r. A variable resistacne R is connected to the terminals of the battery. A current `i` is drawn from the

Description : A battery of emf E has an internal resistance r. A variable resistacne R is connected to the terminals of the battery. A current `i` is drawn from the

Last Answer : A battery of emf E has an internal resistance r. A variable resistacne R is connected to the terminals of ... infinity, `(E)/(r)`, V approaches E

Which one of the following is the advantage of connecting two dry cells in parallel instead of in series? Is it because the parallel arrangement: w) gives twice the EMF of one dry cell x) has no internal resistance y) generates heat in an external circuit half as fast as would a single cell z) has half the internal resistance of a single cell

Description : Which one of the following is the advantage of connecting two dry cells in parallel instead of in series? Is it because the parallel arrangement: w) gives twice the EMF of one dry cell x) has no ... circuit half as fast as would a single cell z) has half the internal resistance of a single cell

Last Answer : ANSWER: Z -- HAS HALF THE INTERNAL RESISTANCE OF A SINGLE CELL 

A cell of emf E and internal resistance r is connected in series with an external resistance nr. Than what will be the ratio of the terminal potential

Description : A cell of emf E and internal resistance r is connected in series with an external resistance nr. Than what will be the ratio of the terminal potential

Last Answer : A cell of emf E and internal resistance r is connected in series with an external resistance nr. Than what will be the ... /(n + 1)` D. `(n + 1)/n`

Four identical cells of emf `epsilon` and internal resistance r are to be connected in series. Suppose, if one of the cell is connected wrongly, then

Description : Four identical cells of emf `epsilon` and internal resistance r are to be connected in series. Suppose, if one of the cell is connected wrongly, then

Last Answer : Four identical cells of emf `epsilon` and internal resistance r are to be connected in series. Suppose, if one of ... and 4r C. 2E and 2r D. 4E and 2r

A wire of length 100 cm is connected to a cell of emf 2 V and negligible internal resistance. The resistance of the wire is `3 Omega`. The additional

Description : A wire of length 100 cm is connected to a cell of emf 2 V and negligible internal resistance. The resistance of the wire is `3 Omega`. The additional

Last Answer : A wire of length 100 cm is connected to a cell of emf 2 V and negligible internal resistance. The ... B. `47Omega` C. `57Omega` D. `35Omega`

A voltmeter of resistance `998 Omega` is connected across a cell of emf 2 V and internal resistance `2 Omega`. Find the p.d. across the voltmeter, tha

Description : A voltmeter of resistance `998 Omega` is connected across a cell of emf 2 V and internal resistance `2 Omega`. Find the p.d. across the voltmeter, tha

Last Answer : A voltmeter of resistance `998 Omega` is connected across a cell of emf 2 V and internal resistance `2 Omega`. Find the ... B. `3.5 V` C. 5 V D. 6 V

The maximum power dissipated in an external resistance R, when connected to a cell of emf E and internal resistance r, will be

Description : The maximum power dissipated in an external resistance R, when connected to a cell of emf E and internal resistance r, will be

Last Answer : The maximum power dissipated in an external resistance R, when connected to a cell of emf E and internal resistance r, ... /(3r)` D. `(E^(2))/(4r)`

An ammeter and a voltmeter of resistance `R` connected in seires to an electric cell of negligible internal resistance. Their readings are `A` and `V`

Description : An ammeter and a voltmeter of resistance `R` connected in seires to an electric cell of negligible internal resistance. Their readings are `A` and `V`

Last Answer : An ammeter and a voltmeter of resistance `R` connected in seires to an electric cell of negligible ... increase D. A will increase and V will decrease

The induced emf in a coil depends upon: a. Strength of magnetic field b. Resistance of the coil c. area of the coil d. All of them

Description : The induced emf in a coil depends upon: a. Strength of magnetic field b. Resistance of the coil c. area of the coil d. All of them

Last Answer : d. All of them

Desirable resistance of a ________ is achieved by connecting a high resistance Rh in series with a galvanometer a) Ammeter b) Ohmmeter c) LED d) Voltmeter

Description : Desirable resistance of a ________ is achieved by connecting a high resistance Rh in series with a galvanometer a) Ammeter b) Ohmmeter c) LED d) Voltmeter

Last Answer : d) Voltmeter

Three identical, each of emf 2 V and internal resistance `0.2 Omega` are connected in series to an external resistor of `7.4 Omega`. Calculate the cur

Description : Three identical, each of emf 2 V and internal resistance `0.2 Omega` are connected in series to an external resistor of `7.4 Omega`. Calculate the cur

Last Answer : Three identical, each of emf 2 V and internal resistance `0.2 Omega` are connected in series to ... 7.4 Omega`. Calculate the current in the circuit.

A battery of emf 2 V and internal resistance `0.5 Omega` is connected across a resistance of `9.5 Omega`. How many electrons pass through a cross-sect

Description : A battery of emf 2 V and internal resistance `0.5 Omega` is connected across a resistance of `9.5 Omega`. How many electrons pass through a cross-sect

Last Answer : A battery of emf 2 V and internal resistance `0.5 Omega` is connected across a resistance of `9. ... a cross-section of the resistance in 1 second ?

The potential differnce between the terminals of a battery of emf 6.0 V and internal resistance `1 Omega` drops to 5.8 V when connected across an exte

Description : The potential differnce between the terminals of a battery of emf 6.0 V and internal resistance `1 Omega` drops to 5.8 V when connected across an exte

Last Answer : The potential differnce between the terminals of a battery of emf 6.0 V and internal resistance ... resistor . Find the resistance of the external res

A 0-10 mA PMMC ammeter reads 5mA in a circuit; its bottom control spring snaps out suddenly the meter will now read. a) 5mA b) 10mA c) 2.5mA d) 0

Description : A 0-10 mA PMMC ammeter reads 5mA in a circuit; its bottom control spring snaps out suddenly the meter will now read. a) 5mA b) 10mA c) 2.5mA d) 0

Last Answer : Ans: 0

The emf of a cell E is 15 V as shown in the figure with an internal resistance of `0.5Omega`. Then the value of the current drawn from the cell is

Description : The emf of a cell E is 15 V as shown in the figure with an internal resistance of `0.5Omega`. Then the value of the current drawn from the cell is

Last Answer : The emf of a cell E is 15 V as shown in the figure with an internal resistance of `0.5Omega`. Then the value of ... A. `3A` B. `2A` C. `5A` D. `1A`

The phenomenon of producing emf in the coil due to change of current in the coil itself is called: a. mutual induction b. self-induction c. self-inductance d. mutual inductance

Description : The phenomenon of producing emf in the coil due to change of current in the coil itself is called: a. mutual induction b. self-induction c. self-inductance d. mutual inductance

Last Answer : d. mutual inductance

A coil is wound with 400 feet of No. 16 tinned copper wire and connected to a 12 volt battery. What is the current if the resistance per 1000 feet of No. 16 tinned copper wire is 4.26 ohms? A. 4.8 amps B. 7.06 amps C. 10.65 amps D. 11.27 amps

Description : A coil is wound with 400 feet of No. 16 tinned copper wire and connected to a 12 volt battery. What is the current if the resistance per 1000 feet of No. 16 tinned copper wire is 4.26 ohms? A. 4.8 amps B. 7.06 amps C. 10.65 amps D. 11.27 amps

Last Answer : Answer: B

The electric force between two charges placed in air is 2 Newton. When placed in a medium of ∈r = 80, the force reduced to: (a) 0.029 N (b) 0.025 N (c) 0.03 N (d) 0.04 N

Description : The electric force between two charges placed in air is 2 Newton. When placed in a medium of ∈r = 80, the force reduced to: (a) 0.029 N (b) 0.025 N (c) 0.03 N (d) 0.04 N

Last Answer : (b) 0.025 N

A straight wire of length 0.20 m moves at a steady speed of 3.0 m s-1 at right angles to the magnetic field of flux density 0.10 T. The e.m.f induced across ends of wire is A. 0.5 V B. 0.06 V C. 0.05 V D. 0.04 V

Description : A straight wire of length 0.20 m moves at a steady speed of 3.0 m s-1 at right angles to the magnetic field of flux density 0.10 T. The e.m.f induced across ends of wire is A. 0.5 V B. 0.06 V C. 0.05 V D. 0.04 V

Last Answer : 0.06 V

A 400kW, 3-phase, 440V, 50Hz induction motor has a speed of 950 r.p.m. on fullload. The machine has 6 poles. The slip of the machine will be _______________. (A) 0.06 (B) 0.10 (C) 0.04 (D) 0.05

Description : A 400kW, 3-phase, 440V, 50Hz induction motor has a speed of 950 r.p.m. on fullload. The machine has 6 poles. The slip of the machine will be _______________. (A) 0.06 (B) 0.10 (C) 0.04 (D) 0.05

Last Answer : Ans: D N = Ns (1-S) 950 = 120 x 50 (1-S)/6 S = 0.05

Three identical cells each of emf 2 V and unknown internal resistance are connected in parallel. This combination is connected to a `5 Omega` resistor

Description : Three identical cells each of emf 2 V and unknown internal resistance are connected in parallel. This combination is connected to a `5 Omega` resistor

Last Answer : Three identical cells each of emf 2 V and unknown internal resistance are connected in parallel. ... what is the internal resistance of each cell ?

Two cells, having the same emf, are connected in series through an external resistance `R`. Cells have internal resistance `r_(1)` and `r_(2) (r_(1) g

Description : Two cells, having the same emf, are connected in series through an external resistance `R`. Cells have internal resistance `r_(1)` and `r_(2) (r_(1) g

Last Answer : Two cells, having the same emf, are connected in series through an external resistance `R`. Cells have internal resistance ... D. `(r_(1)+r_(2))/(2)`

There are n cells, each of emf E and internal resistance r, connected in series with an external resistance R. One of the cells is wrongly connected,

Description : There are n cells, each of emf E and internal resistance r, connected in series with an external resistance R. One of the cells is wrongly connected,

Last Answer : There are n cells, each of emf E and internal resistance r, connected in series with an external resistance R. One of the ... D. `((n-2)E)/((n-2)r+R)`

When two batteries are connected in parallel, it should be ensured that A. They have same emf B. They have same make C. They have same ampere hour capacity D. They have identical internal resistance

Description : When two batteries are connected in parallel, it should be ensured that A. They have same emf B. They have same make C. They have same ampere hour capacity D. They have identical internal resistance

Last Answer : A. They have same emf

Fing the reading of the ideal ammeter connected in the given circuit. Assume that the cells have negligible internal resistance.

Description : Fing the reading of the ideal ammeter connected in the given circuit. Assume that the cells have negligible internal resistance.

Last Answer : Fing the reading of the ideal ammeter connected in the given circuit. Assume that the cells have negligible internal ... 25A` C. `1.95A` D. `1.0A`

A coil is wound with 200 feet of No. 16 tinned copper wire and connected to a 12 volt battery. What is the current if the resistance per 1000 feet of No. 16 tinned copper wire is 4.26 ohms? A. 1.14 amps B. 7.04 amps C. 10.22 amps D. 14.08 amps

Description : A coil is wound with 200 feet of No. 16 tinned copper wire and connected to a 12 volt battery. What is the current if the resistance per 1000 feet of No. 16 tinned copper wire is 4.26 ohms? A. 1.14 amps B. 7.04 amps C. 10.22 amps D. 14.08 amps

Last Answer : Answer: D

A potentiometer wire of length `100 cm` having a resistance of `10 Omega` is connected in series with a resistance `R` and a cell of emf `2V` of negli

Description : A potentiometer wire of length `100 cm` having a resistance of `10 Omega` is connected in series with a resistance `R` and a cell of emf `2V` of negli

Last Answer : A potentiometer wire of length `100 cm` having a resistance of `10 Omega` is connected in series with a ... Omega` C. `790 Omega` D. `840 Omega`

How would you arrange 64 similar cells each having an emf of 2.0 V and internal resistance `2 Omega` so as to send maximum current through an external

Description : How would you arrange 64 similar cells each having an emf of 2.0 V and internal resistance `2 Omega` so as to send maximum current through an external

Last Answer : How would you arrange 64 similar cells each having an emf of 2.0 V and internal resistance ` ... current through an external resistance of `8 Omega`.

An ammeter has a current change of 0—5A and its internal resistance is 0.2 ohm. In order to Change the range

Description : An ammeter has a current change of 0-5A and its internal resistance is 0.2 ohm. In order to Change the range to 0-25 A, wear need to add a resistance of  A) 0.8 ohm in series with the meter B) ... series with the meter C) 0.04 ohm in parallel with the meter D) 0.05 ohm in parallel with the meter

Last Answer : An ammeter has a current change of 0—5A and its internal resistance is 0.2 ohm. In order to Change the range to 0-25 A, wear need to add a resistance of 0.05 ohm in parallel with the meter

In Helium-neon Laser discharge tube, neon gas is a) 85% b) 15% c) 75% d) 45%

Description : In Helium-neon Laser discharge tube, neon gas is a) 85% b) 15% c) 75% d) 45%

Last Answer : b) 15%

In Helium-neon Laser, in meta stable state, helium is located at the energy level: a) 20.66 eV b) 20.77 eV c) 20.61 eV d) 20.71 eV

Description : In Helium-neon Laser, in meta stable state, helium is located at the energy level: a) 20.66 eV b) 20.77 eV c) 20.61 eV d) 20.71 eV

Last Answer : c) 20.61 eV

In Helium-neon Laser discharge tube, helium gas is a) 15% b) 85% c) 75% d) 35%

Description : In Helium-neon Laser discharge tube, helium gas is a) 15% b) 85% c) 75% d) 35%

Last Answer : b) 85%

Common type of Laser used in physics laboratories is a) hydrogen neon Laser b) helium-neon Laser c) carbon neon Laser d) argon neon laser

Description : Common type of Laser used in physics laboratories is a) hydrogen neon Laser b) helium-neon Laser c) carbon neon Laser d) argon neon laser

Last Answer : b) helium-neon Laser

Calculate damping ratio if mass = 200Kg, ω = 20rad/s and damping coefficient = 800 N/m/s A. 0.03 B. 0.04 C. 0.05 D. 0.06

Description : Calculate damping ratio if mass = 200Kg, ω = 20rad/s and damping coefficient = 800 N/m/s A. 0.03 B. 0.04 C. 0.05 D. 0.06

Last Answer : A. 0.03

Calculate damping ratio from the following data: mass = 200Kg ω = 20rad/s damping coefficient = 1000 N/m/s a) 0.03 b) 0.04 c) 0.05 d) 0.06

Description : Calculate damping ratio from the following data: mass = 200Kg ω = 20rad/s damping coefficient = 1000 N/m/s a) 0.03 b) 0.04 c) 0.05 d) 0.06

Last Answer : b) 0.04

Calculate damping ratio from the following data: mass = 200Kg ω = 20rad/s damping coefficient = 800 N/m/s a) 0.03 b) 0.04 c) 0.05 d) 0.06

Description : Calculate damping ratio from the following data: mass = 200Kg ω = 20rad/s damping coefficient = 800 N/m/s a) 0.03 b) 0.04 c) 0.05 d) 0.06

Last Answer : a) 0.03

Calculate the dipole moment of a dipole with equal charges 2C and -2C separated by a distance of 2cm. a) 0.02 b) 0.04 c) 0.06 d) 0.08

Description : Calculate the dipole moment of a dipole with equal charges 2C and -2C separated by a distance of 2cm. a) 0.02 b) 0.04 c) 0.06 d) 0.08

Last Answer : b) 0.04

The alcoholic content of **** is approximately _____. a. 0.02 b. 0.04 c. 0.06 d. 0.08

Description : The alcoholic content of beer is approximately _____. a. 0.02 b. 0.04 c. 0.06 d. 0.08

Last Answer : b. 0.04

A dumpy level was set up at the midpoint between two pegs A and B, 50 m apart and the staff readings at and were 1.22 and 1.06. With the level set up at , the readings at and were 1.55 and 1.37. The collimation error per 100 m length of sight is (A) 0.02 m inclined upwards (B) 0.04 m inclined downwards (C) 0.04 m inclined upward (D) None of these

Description : A dumpy level was set up at the midpoint between two pegs A and B, 50 m apart and the staff  readings at and were 1.22 and 1.06. With the level set up at , the readings at  and were 1.55 and ... upwards  (B) 0.04 m inclined downwards  (C) 0.04 m inclined upward  (D) None of these

Last Answer : (B) 0.04 m inclined downwards 

Minimum size of the particles of silt soil, is (A) 0.002 mm (B) 0.04 mm (C) 0.06 mm (D) 0.08 mm

Description : Minimum size of the particles of silt soil, is (A) 0.002 mm (B) 0.04 mm (C) 0.06 mm (D) 0.08 mm

Last Answer : (A) 0.002 mm

Maximum size of clay particles is: (A) 0.002 mm (B) 0.04 mm (C) 0.06 mm (D) 0.08 mm

Description : Maximum size of clay particles is: (A) 0.002 mm (B) 0.04 mm (C) 0.06 mm (D) 0.08 mm

Last Answer : (A) 0.002 mm

The internal resistance of a `2.1 V` cell which gives a current `0.2 A` through a resistance of `10 Omega`

Description : The internal resistance of a `2.1 V` cell which gives a current `0.2 A` through a resistance of `10 Omega`

Last Answer : The internal resistance of a `2.1 V` cell which gives a current `0.2 A` through a resistance of `10 Omega` A ... Omega` C. `0.8 Omega` D. `1.0 Omega`