Description : Two batteries of emf `epsilon_(1)` and `epsilon_(2) (epsilon_(2)gtepsilon_(1)` and internal resistances `r_(1)` and `r_(2)` respectively are connected
Last Answer : Two batteries of emf `epsilon_(1)` and `epsilon_(2) (epsilon_(2)gtepsilon_(1)` and internal resistances ... internal resistances `r_(1)` and `r_(2)`
Description : A 20 V battery of internal resistance `1 Omega` is connected to three coils of `12 Omega, 6 Omega` and `4 Omega` in parallel, a resistor of `5Omega` a
Last Answer : A 20 V battery of internal resistance `1 Omega` is connected to three coils of `12 ... and the terminal potential difference across each battery.
Description : A coil =of inductance `L=50muH` and resistance =`0.5Omega` is connected to a battery of emf=5A. A resistance of `10Omega` is connected parallel to the
Last Answer : A coil =of inductance `L=50muH` and resistance =`0.5Omega` is connected to a battery of emf=5A. A resistance ... is (0.02)x in mJ. Find valuie of x.
Description : In a series parallel circuit, any two resistances in the same current path must be in?
Last Answer : In a series parallel circuit, any two resistances in the same current path must be in series with each other.
Description : If electric resistance is to be decreased, then the number of resistances should be connected in – (1) Series (2) Parallel (3) Mixed arrangement (4) None of these
Last Answer : (2) Parallel Explanation: Resistors are in parallel when each resistor is connected directly to the voltage source by connecting wires having riegligible resistance. Each resistor thus has the full voltage ... same full voltage of the source applied to it, but divide the total current amongst them
Description : Heat flux through several resistances in series in analogous to the current flowing through several (A) Resistances in parallel (B) Capacitors in series (C) Resistances in series (D) None of these
Last Answer : (C) Resistances in series
Description : If electric resistance is to be decreased, then the number of resistances should be connected in _______ (1) Series (2) Parallel (3) Mixed arrangement (4) None of these
Last Answer : Parallel
Description : Series parallel resistances problem solution
Last Answer : Series parallel resistances problem solution
Description : Given below are two premises, with four conclusions drawn from them (taking singly or together); which conclusions are validly drawn ? Select the correct answer from the codes given below : Premises : (i) All bats are mammals. (ii) Birds are ... B) (b) and (d) (C) (a) and (c) (D) (b), (c) and (d)
Last Answer : Answer: B
Description : When four resistances of 2W 1W; 5W 2W; 10W 5W and 15W 10 W are connected in parallel, the greatest power is absorbed by • 2 W, 1 W • 5 W, 2 W • 10 W, 5W • 15 W, 10 W
Last Answer : When four resistances of 2W 1W; 5W 2W; 10W 5W and 15W 10 W are connected in parallel, the greatest power is absorbed by 2 W, 1 W
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 : 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)`
Description : Three resistances 20 Ω, 30 Ω and 60 Ω are connected in parallel, their combined resistance is given by A. 110 Ω B. 50 Ω C. 20 Ω D. 10 Ω
Last Answer : 10 Ω
Description : Given below are two premises ( (a) and (b) ). From those two premises four conclusions (i), (ii), (iii) & (iv) are drawn. Select the code that states the conclusions validly drawn from the premises (taking singly or jointly. ) ... and (ii) (B) (ii) and (iii) (C) (iii) and (iv) (D) (ii) and (iv)
Last Answer : Answer:A
Description : Three resistances `2 Omega, 3 Omega` and `4 Omega` are connected in parallel. The ratio of currents passing through them when a potential difference i
Last Answer : Three resistances `2 Omega, 3 Omega` and `4 Omega` are connected in parallel. The ratio of currents passing through them ... ` C. `4:3:2` D. `6:4:3`
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`
Description : Current through the `5Omega` resistor is
Last Answer : Current through the `5Omega` resistor is A. 2A B. 4A C. zero D. 1A
Description : Four resistances are connected in a circuit in the given figure. The electric cirrent flowing through `4 ohm` and `6 ohm` resistance is respectively
Last Answer : Four resistances are connected in a circuit in the given figure. The electric cirrent flowing through `4 ohm` and `6 ... 1 A and 1 A D. 2 A and 2 A
Description : Name the given reaction and enzyme involved in it `underset("Amino donor")(R_(1)-underset(NH_(3)^(+))underset(|)overset(H)overset(|)(C)-COO^(-)+unders
Last Answer : Name the given reaction and enzyme involved in it `underset("Amino donor")(R_(1)-underset(NH_(3)^(+)) ... underset(|)overset(H)overset(|)(C)-COO^(-)`
Description : Determine the voltage drop across the resistance `R_(1)` in the circuit given in Fig. 4.55 with `epsilon=90 V, R_(1)=5 k Omega, R_(2)=5k Omega, R_(3)=
Last Answer : Determine the voltage drop across the resistance `R_(1)` in the circuit given in Fig. 4.55 with `epsilon=90 V, ... k Omega " and " R_(4)=10 k Omega`.
Description : the current in resistance `R_(3)` in the given circuit is `2/x A`. Find the value of x.
Last Answer : the current in resistance `R_(3)` in the given circuit is `2/x A`. Find the value of x. A. `1A` B. `2//3A` C. `0.25A` D. `0.50A`
Description : Two cells of emf of 1.5 V and 2.0 V having internal resistances of `1 Omega` and `2 Omega`, respectively are connected in parallel so as to send curre
Last Answer : Two cells of emf of 1.5 V and 2.0 V having internal resistances of `1 Omega` and `2 Omega` ... of `5 Omega`. Find the current in the external circuit.
Description : Two resistors of resistances `2Omega` and `6Omega` are connected in parallel. This combination is then connected to a battery of emf 2 V and internal
Last Answer : Two resistors of resistances `2Omega` and `6Omega` are connected in parallel. This combination is then connected to a ... . `(4)/(17)A` D. `1 A`
Description : Two resistances are joined in parallel whose resultant is `6//8 ohm`. One of the resistance wire is broken and the effective resistance becomes `2 Ome
Last Answer : Two resistances are joined in parallel whose resultant is `6//8 ohm`. One of the resistance wire is broken and the ... /5` B. 2 C. `6//5` D. 3
Last Answer : If two resistances of 10 Ω and 10 Ω are connected in parallel the equivalent resistance is 5 Ω.
Last Answer : YEETUS FEETUS
Description : If a circuit has resistances of 5, 10, and 20 ohms connected in parallel, what is the combined resistance of the circuit? A. 1.5 ohms B. 2.9 ohms C. 17.5 ohms D. 35.0 ohms
Description : The total resistance of a parallel circuit is always ____________. A. larger than that of the branch with the greatest resistance B. smaller than that of the branch with the lowest resistance C ... resistances D. equal to the sum of the individual branch resistances divided by the number of branches
Description : Which of the following statements concerning a simple parallel resistance circuit is correct? A. The voltage drop across each resistor is the same. B. The total current flow equals the reciprocal ... resistances. D. The total voltage equals the sum of the individual voltages across each resistance.
Last Answer : Answer: A
Description : The total resistance of a parallel circuit is always ____________. A. larger than the greatest branch resistance B. smaller than the lowest branch resistance C. equal to the sum of the individual branch resistances D. one-half the sum of the individual branch resistances
Description : When n resistances each of value r are connected in parallel, then resultant resistance is x. When these n resistances are connected in series, total resistance is
Last Answer : When n resistances each of value r are connected in parallel, then resultant resistance is x. When these n resistances are connected in series, total resistance is n2 x.
Description : With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals?
Last Answer : Power is the only thing which is additive in both connection whether it is parallel or series connection so total power consumed will addition of all individual power =20+20+20 = 60 watt
Description : A slab simply supported on the four edges, with corners not held down and carrying uniformly distributed load, is used in (a) Singly storeyed buildings. (b) Double storeyed buildings. (c) Multi storeyed buildings (d) All the above
Last Answer : (a) Singly storeyed buildings.
Description : Two cells connected in series have electromotive force of 1.5 V each. Their internal resistances are `0.5 Omega` and `0.25 Omega` respectively. This c
Last Answer : Two cells connected in series have electromotive force of 1.5 V each. Their internal ... potential differnce across the terminals of each cell.
Description : When a current of 0.5 A is passed through two resistances in series, the potential difference between the ends of the series arrangement is 12.5 V. On
Last Answer : When a current of 0.5 A is passed through two resistances in series, the potential difference between ... ends is 6 V. Calculate the two resistances.
Description : Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across?
Last Answer : Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across Rl.
Description : Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the (A) Maximum resistance in the series (B) Sum of all resistances (C) Average of all resistances (D) Minimum resistance presents in the series
Last Answer : (B) Sum of all resistances
Description : The overall resistance for heat transfer through a series of flat resistance, is the __________ of the resistances. (A) Average (B) Geometric mean (C) Product (D) Sum
Last Answer : (D) Sum
Description : Which is NOT a characteristic of a series circuit? w) The current is the same throughout. x) The total resistance is the sum of the individual resistance. y) The voltage of the source ... individual voltage drops. z) The total resistance is the sum of the reciprocals of the individual resistances.
Last Answer : ANSWER: Z -- THE TOTAL RESISTANCE IS THE SUM OF THE RECIPROCALS OF THE RECIPROCAL OF THE INDIVIDUAL RESISTANCES.
Description : If three resistances are added in series, their resultant will be: A. Same B. sum of all C. Zero D. Inverse sums of all
Last Answer : If three resistances are added in series, their resultant will be: sum of all
Description : In a series circuit with unequal resistances?
Last Answer : In a series circuit with unequal resistances the highest resistance has the highest voltage drop.
Description : Two opposite forces operate in the growth and development of every population. One of them is related to the ability to reproduce at a given rate. The force opposite to it is called (a) fecundity (b) environmental resistances (c) biotic control (d) mortality.
Last Answer : (b) environmental resistances
Description : Which of the following statement is true? i) Using singly linked lists and circular list, it is not possible to traverse the list backwards. ii) To find the predecessor, it is required to traverse the list from the first ... linked list. A) i-only B) ii-only C) Both i and ii D) None of both
Last Answer : C) Both i and ii
Description : A combination of four resistances is shown in Fig. 4.59. Calculate the potential difference between the points P and Q, and the values of currents flo
Last Answer : A combination of four resistances is shown in Fig. 4.59. Calculate the potential difference ... of currents flowing in the different resistances.
Description : In the figure shown there are two semicircles of radii `r_(1)` and `r_(2)` in which a current `i` is flowing. The magnetic induction at the centre `O`
Last Answer : In the figure shown there are two semicircles of radii `r_(1)` and `r_(2)` in which a current `i` is flowing. The ... 4)[(r_(1)-r_(2))/(r_(1)r_(2))]`
Description : If a body (coated black) at 600K surrounded by atmosphere at 300K has cooling rate `r_(0)`, the same body at 900K, surrounded by the same atmosphere,
Last Answer : If a body (coated black) at 600K surrounded by atmosphere at 300K has cooling rate `r_(0)`, the same body at 900K, ... )//6` C. `16r_(0)` D. `4r_(0)`
Description : If a body (coated black) at `600 K` surrounded by atmosphere at `300 K` has cooling rate `r_(0)`, the same body at `900 K`, surrounded by the same atm
Last Answer : If a body (coated black) at `600 K` surrounded by atmosphere at `300 K` has cooling rate `r_(0)`, the same body ... (0)//16` C. `16r_(0)` D. `4r_(0)`
Description : A satellite of mass m orbits the earth in an elliptical orbit having aphelion distance `r_(a)` and perihelion distance `r_(p)`. The period of the orbi
Last Answer : A satellite of mass m orbits the earth in an elliptical orbit having aphelion distance `r_(a)` and perihelion distance ... r_(p)) sqrt(r_(a)r_(p)))/T`
Description : Hydrolysis of ester in catalysed by acid. Rate of hydrolysis of ester were obtained initially and after some ester has been hydrolysed as `R_(0)` and
Last Answer : Hydrolysis of ester in catalysed by acid. Rate of hydrolysis of ester were obtained initially and after some ... 0) gt R_(t)` D. Cannot be determined
Description : Six resistance each of value `r=5 Omega` are connected between points A, B and C as shown in figure. If `R_(1), R_(2)` and `R_(3)` are the net resista
Last Answer : Six resistance each of value `r=5 Omega` are connected between points A, B and C as shown in figure. If `R_(1), R_(2) ... 1:2:3` C. `5:4:3` D. `4:3:2`