Kirchhoff's Laws With Capacitors

IMPORTANT

Kirchhoff's Laws With Capacitors: Overview

This topic covers concepts, such as, Kirchhoff's Law with Capacitors, Kirchhoff's First Law with Capacitors & Kirchhoff's Second Law with Capacitors etc.

Important Questions on Kirchhoff's Laws With Capacitors

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IMPORTANT

Calculate the potential difference across the capacitor in the circuit (in Volts). (Approximate the answer to the nearest integer)

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IMPORTANT

In the circuit shown in figure the switch S is initially open and both the capacitors are initially uncharged. If the ratio of current through 2Ω resistor, just after the switch S is closed and a long time after the switch S is closed is x2, find the value of x.

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MEDIUM
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Three capacitors are connected as shown in the figure. Then the charge on capacitor plate C1 is,

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EASY
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Two capacitors of 2 μF and 3 μF are connected in series. The potential at point A is 1000 V and the outer plate of 3 μF capacitor is earthed. The potential at point B is, 

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HARD
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Three uncharged capacitors of capacities C1,C2 and C3 are connected as shown in the figure. A,B and C are at potentials V1, V2 and V3 respectively. The potential at O is

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MEDIUM
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The equivalent capacitance between the points A and B is

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A capacitor C1=1μf and C2=2μf are charged with switch in position 1. Now switch is shifted to position 2. Capacitor C3=3μf is initially uncharged. The ratio of potential difference on C1 and C3 is:

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EASY
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In the given figure, three capacitors C1, C2 and C3 are joined to a battery, with symbols having their usual meanings, the correct conditions will be:-

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MEDIUM
IMPORTANT

In the figure a potential of +1200 V is given to point A and point B is earthed, what is the potential at the point P:

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HARD
IMPORTANT

A charge of 8 μC is given to point A and point B is earthed. If each capacitance is 1 μF, what is the total energy (in μJ ) of the system ?

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Three uncharged capacitors of capacitance C1,C2 and C3 are connected as shown in the figure to one another at point O. Points A, B and D are at potentials VA, VB and VD respectively. Then the potential at O will be,: 

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HARD
IMPORTANT

The charge on the capacitor C in steady state is q1 in the given diagram. Now, key is closed and steady state charge on C is q2 .The ratio of charges q1 and q2 will be -




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MEDIUM
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A capacitors of plate area A and mass m2 of each plate is charged upto charge q . The lower plate is rigidly fixed as shown in figure. Find the value of m1 so that the system remain in equilibrium -




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HARD
IMPORTANT

In the given circuit switch K is open. The charge on the capacitor is C in this steady state is q1 . Now key is closed and steady state charge on C is q2 . The ratio q1/q2 is -




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MEDIUM
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In steady state, charge on μF capacitor is

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In the adjacent circuit VAVB will be:
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In the circuit of following figure, the final voltage drop across the capacitor C in steady state is

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Two condensers C1 and C2 in a circuit are joined as shown in figure. The potential of point A is V1 and that of B is V2 . The potential of point D will be




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MEDIUM
IMPORTANT

In the circuit shown in the figure, a potential difference of 60 V is applied between a and b. The potential difference between the points c and d is
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HARD
IMPORTANT

The figure shows two capacitors C1 and C2 connected with 10 V battery and terminals A and B are earthed. The graph shows the variation of potential as one moves from left to right. Then the ratio of C1C2 is
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