Description : What is the resistance of an ideal voltmeter?
Last Answer : ANSWER: INFINITE RESISTANCE
Description : In the circuit shown in figure ammeter and voltmeter are ideal. If `E=4 V,R=9Omega` and `r=1Omega` then readings of ammeter and voltmeter are
Last Answer : In the circuit shown in figure ammeter and voltmeter are ideal. If `E=4 V,R=9Omega` and `r=1Omega` then readings of ... V C. 3 A, 4 V D. 4 A, 4 V
Description : What should be the resistance of a standard voltmeter ?
Last Answer : : The resistance of a standard voltmeter should be infinite.
Description : The emf of a battery is 4.0 V and its internal resistance is `1.5 Omega`. Its potential difference is measured by a voltmeter of resistance `1000 Omeg
Last Answer : The emf of a battery is 4.0 V and its internal resistance is `1.5 Omega`. Its potential ... percentage error in the reading of emf shown by voltmeter.
Description : In the circuit diagram shown in Fig. 4.53, a voltmeter reads 30 V when connected across `400 Omega` resistance. Calculate what the same voltmeter read
Last Answer : In the circuit diagram shown in Fig. 4.53, a voltmeter reads 30 V when connected across `400 ... when it is connected across `300 Omega` resistance.
Description : A voltmeter of range 2 V and resistance `300 Omega` cannot be converted into ammeter of range
Last Answer : A voltmeter of range 2 V and resistance `300 Omega` cannot be converted into ammeter of range A. `1 A` B. `1 mA` C. `100 mA` D. `10 mA`
Description : A galvanometer has a coil of resistance `100 Omega` and gives a full-scale deflection for `30 mA` current. If it is to work as a voltmeter of `30 V` r
Last Answer : A galvanometer has a coil of resistance `100 Omega` and gives a full-scale deflection for `30 mA` current. ... Omega` C. `1000 Omega` D. `1800 Omega`
Description : A galvanometer having internal resistance `10 Omega` required `0.01` A for a full scale deflection. To convert this galvanometer to a voltmeter of ful
Last Answer : A galvanometer having internal resistance `10 Omega` required `0.01` A for a full scale deflection. ... Omega` in series D. `12010 Omega` in parallel
Description : Consider the diagram shown below. A Voltmeter of resistance `150 Omega` is connected across A and B. The potential drop across B and C measured by vol
Last Answer : Consider the diagram shown below. A Voltmeter of resistance `150 Omega` is connected across A and B. The potential ... 29 B. 27 V C. 31 V D. 30 V
Description : The range of voltmeter is 10 V and its internal resistance is `50 Omega`. To convert it to voltmeter of range 15 V, how much resistance is to be added
Last Answer : The range of voltmeter is 10 V and its internal resistance is `50 Omega`. To convert it to ... in parallel D. Add `125 Omega` resistor in series
Description : In the given circuit, the voltmeter records 5 V. The resistance of the voltmeter in `Omega` is
Last Answer : In the given circuit, the voltmeter records 5 V. The resistance of the voltmeter in `Omega` is A. 200 B. 100 C. 10 D. 50
Description : A `100 V` voltmeter of internal resistance `20 k Omega` in series with a high resistance `R` is connected to a `110 V` line. The voltmeter reads `5 V`
Last Answer : A `100 V` voltmeter of internal resistance `20 k Omega` in series with a high resistance `R` is ... B. `315kOmega` C. `420kOmega` D. `440kOmega`
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
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
Description : By mistake, a voltmeter is connected in series and an ammeter is connected in parallel, with a resistance in an electrical circuit. What will happen t
Last Answer : By mistake, a voltmeter is connected in series and an ammeter is connected in parallel, with a ... be damaged D. Only the voltmeter will be damaged
Description : A resistance of `1980Omega` is connected in series with a voltmeter, after which the scale division becomes 100 times larger. Find the resistance of v
Last Answer : A resistance of `1980Omega` is connected in series with a voltmeter, after which the scale division becomes ... . `20Omega` C. `30Omega` D. `40Omega`
Description : A galvanometer can be converted to a voltmeter by connecting – (1) a high resistance in parallel (2) a high resistance in series (3) a low resistance in series (4) a low resistance in parallel
Last Answer : (2) a high resistance in series Explanation: In order to convert a Galvanometer into voltmeter, a very high resistance known as "series resistance" is connected in series with the ... made for enabling the galvanometer to measure the potential difference across any component in a circuit.
Description : A galvanometer can be converted into a voltmeter by connecting with it a – (1) high resistance in parallel (2) low resistance on parallel (3) high resistance on series (4) low resistance in series
Last Answer : (3) high resistance on series Explanation: In order to convert a Galvanometer into voltmeter, a very high resistance known as "series resistance" is connected in series with the galvanometer ... made for enabling the galvanometer to measure the potential difference across any component in a circuit.
Description : Conductor resistance may be INDIRECTLY measured by using a/an _____________. A. voltmeter only B. ammeter only C. voltmeter and an ammeter D. ohmmeter only
Last Answer : Answer: C
Description : A multimeter may be damaged by taking a _____________. A. voltage reading while in the ammeter mode B. current reading while in the voltmeter mode C. resistance reading while in the ammeter mode D. resistance reading while in the voltmeter mode
Last Answer : Answer: A
Description : You are calibrating a multimeter using internal batteries to supply power for resistance measurements. However, you are unable to adjust the pointer to 'zero' using the adjustment knob. Therefore, you should ... change scales to the R X 100 scale and adjust using the 'zero ohms' adjusting knob
Description : To limit the current flow through a DC voltmeter to as low a value as possible, the moving coil circuit is provided with a/an _____________. A. high series resistance B. high parallel resistance C. series inductor D. external shunt
Description : An internal resistance is placed in series with the meter movement of which of the following instruments? A. AC ammeter B. DC ammeter C. DC voltmeter D. Frequency meter
Description : The basic meter movement responds to the flow of current through its coil. Therefore, this meter movement may be used as a/an _____________. A. voltmeter by placing a resistance in parallel with the ... in parallel with the coil D. ammeter by placing a low resistance in parallel with the coil
Last Answer : Answer: D
Description : In order to increase its range of measurement, a resistance would be placed in series with which of the following instruments? A. DC voltmeter B. DC ammeter C. frequency meter D. power factor meter
Description : To test fuses in an energized circuit, you should use a ____________. A. low voltage light bulb B. megohmmeter C. voltmeter D. resistance meter
Description : A resistance in a circuit of unknown value is to be tested using the voltmeter/ammeter method. Therefore, the meters should be connected with _____________. A. both meters in series with the ... parallel with the resistance D. the ammeter in parallel and the voltmeter in series with the resistance
Description : A voltmeter arranged across the power supply measures A. potential difference B. e.m.f C. current D. resistance
Last Answer : e.m.f
Description : When making voltage measurements in a high-resistance circuit, you should always use a voltmeter with what relative value of resistance?
Last Answer : . High.
Description : Calculate the series resistance needed to convert a D' Arsonval meter with FSD of 100uA and a meter resistance of 1kohm to a voltmeter with 10V FSD.
Last Answer : Rs=10V/100uA - 1kohm = 99kohm
Description : In order to make an accurate measurement as possible, the internal resistance of a voltmeter must be
Last Answer : as high as possible
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
Description : Which one of the following is the way in which a galvanometer is converted into a voltmeter? Is it by connecting: w) a high resistance coil in parallel with its moveable coil x) a low resistance ... coil in series with its moveable coil z) a low resistance coil in series with its moveable coil
Last Answer : ANSWER: Y -- A HIGH RESISTANCE COIL IN SERIES WITH ITS MOVEABLE COIL
Description : To convert a galvanometer to a voltmeter, you should add a: w) high resistance in series x) high resistance in parallel y) low resistance in series z) low resistance in parallel
Last Answer : ANSWER: W -- HIGH RESISTANCE IN SERIES
Description : A galvanometer can be converted to a voltmeter by connecting (1) a high resistance in parallel (2) a high resistance in series (3) a low resistance in series (4) a low resistance in parallel
Last Answer : a high resistance in series
Description : A galvanometer can be converted into a voltmeter by connecting with it a (1) high resistance in parallel (2) low resistance on parallel (3) high resistance on series (4) low resistance in series
Last Answer : high resistance on series
Description : A 1mA D' Arsonval movement has resistance of 100 Ω. It is to be converted to a 10 V voltmeter. The value of multiplier resistance is (A) 999 Ω (B) 9999 Ω (C) 9900 Ω (D) 990 Ω
Last Answer : C) Rs = (10/1x10^-3) - 100 Rs = 9900
Last Answer : The internal resistance of the voltmeter must be very high in order to have Minimum current through the meter.
Last Answer : Voltmeter is used to measure voltage in a circuit.Ohmmeter is used to measure the resistance of a component in a circuit.
Description : Assertion : In the circuit shown in figure, battery is ideal. If a resistance `R_(0)` is cannected in parallel with R, then power across R will increa
Last Answer : Assertion : In the circuit shown in figure, battery is ideal. If a resistance `R_(0)` is cannected ... . D. If Assertion is false but Reason is true.
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`
Description : What is the ideal resistance of a short circuit?
Last Answer : zero ohms
Description : Ideal resistance of ammeter is A. 1 Ω B. 2 Ω C. 0 Ω D. infinite
Last Answer : 0 Ω
Description : Why the input resistance of an ideal OPAMP is infinite and output resistance is zero? secondly, how can we measure these resistances(input and output) in case of an ideal OPAMPand Real OP-AMP in the following conditions when 1- load is not connected. 2- load is connected.
Last Answer : Ans- Ideal OP-AMP is a power ful concept. If one goes through the history of amplifying devices it becomes clear that less it loads the previous stage better the output signal. ie ... . Can refer application notes by device manufacturer available in internet for more precise and practical solutions.
Description : no resistance is encountered by displacement, such a substance is known as (A) Fluid (B) Water (C) Gas (D) Ideal fluid
Last Answer : Answer: Option D
Description : The ideal characteristic of a voltage stablizer is A) constant output voltage with low internal resistance B) constant output current with low internal resistance C) constant output voltage with high internal resistance D) constant internal resistance with variable output voltage.
Last Answer : A) constant output voltage with low internal resistance
Description : Resistance of an ideal insulator is a. Infinite b. Zero c. Finite d. depends upon nature
Last Answer : a. Infinite
Description : 13) In an ideal transformer A. windings have no resistance B. core has no losses C. core has infinite permeability D. all of the above
Last Answer : D. All of the above
Description : State the internal resistance of ideal current and ideal voltage source.
Last Answer : The internal resistance of ideal current and ideal voltage source: Ideal voltage source has zero internal resistance Ideal current source has infinite internal resistance
Description : What is the resistance of an ideal ammeter?
Last Answer : ANSWER: ZERO