AIPMT 2007 | Current Electricity Question 82 | Physics

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

Power dissipated across the 8 $$\Omega $$ resistor in the circuit shown here is 2 watt. The power dissipated in watt units across the 3 $$\Omega $$ resistor is

AIPMT 2006 Physics - Current Electricity Question 65 English

AIPMT 2006 Physics - Current Electricity Question 65 English

3.0

2.0

1.0

0.5

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

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

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

Previous Next

NEET Subjects

Biology

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution