AIPMT 2007 | Current Electricity Question 80 | Physics

AIPMT 2007

MCQ (Single Correct Answer)

-1

Three resistances, P, Q, R each of 2$$\Omega $$ and an unknown resistance S from the four arms of a Wheatstone bridge circuit. When a resistance of 6 $$\Omega $$ is connected in parallel to S the bridge gets balanced. What is the value of S?

3 $$\Omega $$

6 $$\Omega $$

1 $$\Omega $$

2 $$\Omega $$.

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 65 English

AIPMT 2006 Physics - Current Electricity Question 65 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 2006

MCQ (Single Correct Answer)

-1

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.

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