# Kirchoff's Voltage Law

## Trending Questions

**Q.**The resistances of the four arms P, Q, R and S , in a Wheatstone's bridge, are 10 Ω, 30 Ω, 30 Ω and 90 Ω respectively. The e.m.f. and internal resistance of the cell are 7 V and 5 Ω respectively. If the galvanometer resistance is 50 Ω, the current drawn from the cell will be -

- 2.0 A
- 1.0 A
- 0.2 A
- 0.1 A

**Q.**In the given circuit with steady current the potential drop across the capacitor must be

- V
- V2
- V3
- 2V3

**Q.**

What are the limitations of superposition theorem.

**Q.**When the resistance of 2Ω is connected across the terminal of the cell, the current is 0.5 amp. When the resistance is increased to 5Ω, the current is 0.25 amp. The emf of the cell is

- 1.5 volt
- 2.0 volt
- 2.5 volt
- 1.0 volt

**Q.**Three capacitors are connected in the arms of a triangle ABC as shown in the figure. 5V voltage is applied between A and B. The voltage between B and C is:

- 2V
- 1V
- 1.5V
- 0.5V

**Q.**

An electron of mass m and charge e is accelerated from rest through a potential difference v in vacuum. What speed will it acquire?

**Q.**In the circuit shown the readings of ammeter and voltmeter are 4 A and 20 V respectively. The meters are non-ideal, then R is :

- 5 Ω
- less than 5 Ω
- greater than 5 Ω
- between 4 Ω & 5 Ω

**Q.**Four resistances of 15 Ω, 12 Ω, 4 Ω and 10 Ω respectively in cyclic order to form Wheatstone's network. The resistance that is to be connected in parallel with the resistance of 10 Ω to balance the network is _____ Ω.

**Q.**In a circuit, three resistance P, Q and R are connected in the three arms and the fourth arm is formed by two resistance S1 and S2 connected in parallel. The condition for which the circuit will become a balanced wheatstone bridge is

- PQ=R(S1+S2)2S1S2
- PQ=RS1+S2
- PQ=2RS1+S2
- PQ=R(S1+S2)S1S2

**Q.**

State the law of the combination of resistances in parallels.

**Q.**In the given circuit all ammeters are ideal. Then choose correct statement.

- Reading of A2 = Reading of A5
- Reading of A2 and reading of A4 both are zero.
- Reading of A1 is 5 amp
- Reading of A1=52 times reading of A3.

**Q.**In the circuit shown in the figure, a meter bridge is in its balance state. The meter bridge wire has a resistance of 0.1Ω/cm. Calculate the value of unknown resistance X and the current drawn from the battery of negligible internal resistance.

- 1 Ω, 3.6 A
- 2 Ω, 0.9 A
- 3 Ω, 1.0 A
- 2 Ω, 1.8 A

**Q.**Current through wire XY of circuit shown is

- 1 A
- 4 A
- 2 A
- 3 A

**Q.**In the figure, potential difference between A and B is:

- 10 V
- 5 V
- 15 V
- Zero

**Q.**The resistance Rt of a conductor varies with temperature t as shown in the figure. If the variation is represented by

Rt=R0 [1+αt+βt2], then

- α is negative and α are positive

- α is positive and β is negative

- α and β are both positive

- α and β are both negative"

**Q.**The alternating current in a circuit is described by the graph shown in Figure. Show rms current in this graph.

**Q.**Kirchhoff’s voltage law is a consequence of?

- Conservation of charge
- Quantization of energy
- Conservation of energy
- Quantization of charge

**Q.**What is the resistance of this 4 strip resistor ?

Colour are in order- Yellow, violet, red, golden.

- [4.7±5%] kΩ
- [3.6±5%] kΩ
- [4.7±10%] kΩ
- [3.6±10%] kΩ

**Q.**

Four resistors of $5\Omega $, $10\Omega $, $15\Omega $ and $20\Omega $ are connected in parallel. Calculate the total resistance of the circuit.

**Q.**In the given circuit potential of junction P is :

- 4 V
- 0 V
- 3.2 V
- 2.8 V

**Q.**The color code of a carbon resistor is given below

The resistance of the resistor will be

- 24×107Ω±10%
- 25×104Ω±10%
- 35×106Ω±5%
- 27×105Ω±5%

**Q.**Sixteen identical resistors, each having resistance R are connected as shown in the figure. Find the net resistance between points X and Y.

- 5R7
- 7R6
- 6R7
- 3R7

**Q.**

Explain whether Gauss's law is useful in calculating the electric field due to three equal charges located at the corners of an equilateral triangle.

**Q.**4 ideal diodes are connected as shown in the circuit. The current through 50 Ω resistance is

- 0.1 A
- 0.5 A
- 0.6 A
- 1 A

**Q.**

Three resistors of $2\Omega $, $3\Omega $ and $15\Omega $ are connected in parallel. Calculate the total resistance of the circuit.

**Q.**

Kirchhoffs second law is based on the law of conservation of

Charge

Momentum

Energy

Sum of mass and energy

**Q.**

What is the current flowing through the 10 Ω resistor in the figure below?

- 0.2 A
- 0.3 A
- 0.1 A
- 0.4 A

**Q.**

At equilibrium what happens to the cell potential?

**Q.**Considering the circuit and data given in the diagram, calculate the currents flowing in the diodes D1 and D2. Forward resistance of D1 and D2 is 20 Ω.

- 1220 A, 1220 A
- 1220 A, 1110 A
- 1110 A, 1220 A
- 1110 A, 1110 A

**Q.**Five equal resistors each of resistance R are connected as shown in the Figure. A battery of voltage V is connected between A and B. The current flowing in AFCEB will be

- VR
- V2R
- 2VR
- 3VR