MEDIUM
JEE Main/Advance
IMPORTANT
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12 cells, each of emf 1 V and internal resistances of each is 1Ω, are connected in series such that 2 cells are wrongly connected. The current sent by this battery in a resistance of 4Ω

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Important Questions on Current Electricity

MEDIUM
JEE Main/Advance
IMPORTANT

The current through 2Ω will be

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MEDIUM
JEE Main/Advance
IMPORTANT

The diagram shows a modified meter bridge, which is used for measuring two unknown resistances at the same time, when the first Galvanometer is used for obtaining the balanced point, it is found at point C. Now the first galvanometer is removed and the 2nd galvanometer is used which gives balance point at D. Use the details given in diagram, AB=L,AC=L4,AD=2L3. The value of resistances R1 and R2 are respectively

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MEDIUM
JEE Main/Advance
IMPORTANT

In the circuit shown, switches S1 and S2 have been closed for a long time

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HARD
JEE Main/Advance
IMPORTANT

After the switch S shown in Figure A is closed, there is current i through resistance R. Figure B indicates current variation curves a, b, c and d for four sets of values of R and capacitance C:(1)R0 and C0,(2) 2R0 and C0,(3) R0 and 2C0, 42R0 and 2C0. Which set goes with which curve?

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MEDIUM
JEE Main/Advance
IMPORTANT

In the circuit shown, the charge on the 3μF capacitor at steady state will be

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EASY
JEE Main/Advance
IMPORTANT

Under steady state condition

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EASY
JEE Main/Advance
IMPORTANT

In the circuit shown, the switch is shifted from position 12 at t=0. The switch was initially in position 1 since long time. The graph between charge on capacitor C and time'f' is

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MEDIUM
JEE Main/Advance
IMPORTANT

In the circuit shown, C1=1μF,C2=3μF in steady state, the energy stored in these capacitors are respectively

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