AIPMT 2006 | Current Electricity Question 85 | Physics

Two cells, having the same e.m.f. are connected in series through an external resistance R. Cells have internal resistances r₁ and r₂ (r₁ > r₂) respectively. When the circuit is closed, the potential difference across the first cell is zero. The value of R is

r₁ + r₂

r₁ $$-$$ r₂

$${{{r_1} + {r_2}} \over 2}$$

$${{{r_1} - {r_2}} \over 2}$$

AIPMT 2006

MCQ (Single Correct Answer)

-1

Kirchoff's first and second laws of electrical circuits are consequences of

conservation of energy and electric charge respectively

conservation of energy

conservation of electric charhge and energy respectively

conservation of electric charge.

AIPMT 2006

MCQ (Single Correct Answer)

-1

In the circuit shown, if a conducting wire is connected between points A and B, the current in this wire will

AIPMT 2006 Physics - Current Electricity Question 68 English

AIPMT 2006 Physics - Current Electricity Question 68 English

flow from B to A

flow from A to B

flow in the direction which will be decided by the value of V be zero.

be zero

AIPMT 2005

MCQ (Single Correct Answer)

-1

A 5-ampere fuse wire can withstand a maximum power of 1 watt in the circuit. The resistance of the fuse wire is

0.04 ohm

0.2 ohm

5 ohm

0.4 ohm

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