EASY
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IMPORTANT
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Kirchhoff's junction rule is a reflection of

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Important Questions on Current Electricity

MEDIUM
KCET (UG)
IMPORTANT
Equivalent resistance between points A and B in the adjacent circuit is

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MEDIUM
KCET (UG)
IMPORTANT

In the given circuit, the current through 2 Ω resistor is

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MEDIUM
KCET (UG)
IMPORTANT

The effective resistance between P and Q for the following network is

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MEDIUM
KCET (UG)
IMPORTANT

Five identical resistors each of resistance R=1500 Ω are connected to a 300 V battery as shown in the circuit. The reading of the ideal ammeter A is

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KCET (UG)
IMPORTANT
A car has a fresh storage battery of e.m.f 12 V and internal resistance 2×10-2Ω. If the starter motor draws current of 80 A. Then the terminal voltage when the starter is on is
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KCET (UG)
IMPORTANT

The variation of terminal potential difference V with current flowing through as cell is as shown

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The emf and internal resistance of the cell are

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KCET (UG)
IMPORTANT
Two cells of internal resistances r1 and r2 and of the same emf are connected in series, across a resistor of resistance R. If the terminal potential difference across the cells of internal resistance r1 is zero, then the value of R is
EASY
KCET (UG)
IMPORTANT

Consider an electrical conductor connected across a potential difference V. Let Δq be a small charge moving through it in time Δt. If I is the electric current through it,
(i) the kinetic energy of the charge increases by IVΔt
(ii) the electric potential energy of the charge decreases by IVΔt.
(iii) the thermal energy of the conductor increases by IVΔt.

Then the correct statements is/are