PHYSICS for Joint Entrance Examination JEE (Advanced) Electrostatics and Current Electricity>Chapter 5 - Electric Current and Circuits>Exercise>Q 81

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IMPORTANT

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In the given circuit, if $I_{1}$ and $I_{2}$ be the current in resistances $R_{1}$ and $R_{2}$ , respectively, then

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Important Questions on Electric Current and Circuits

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JEE Advanced

IMPORTANT

PHYSICS for Joint Entrance Examination JEE (Advanced) Electrostatics and Current Electricity>Chapter 5 - Electric Current and Circuits>Exercise>Q 82

n

identical cells are joined in series with its two cells

A

and

B

in the loop with reversed polarities. Emf of each shell is

ε

and internal resistance

r

. Potential difference across cell

A

or

B

is (here

n > 4

)

EASY

JEE Advanced

IMPORTANT

PHYSICS for Joint Entrance Examination JEE (Advanced) Electrostatics and Current Electricity>Chapter 5 - Electric Current and Circuits>Exercise>Q 83

In the given figure

R = 3 Ω

. Determine equivalent resistance between points

A

and

B

.

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JEE Advanced

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PHYSICS for Joint Entrance Examination JEE (Advanced) Electrostatics and Current Electricity>Chapter 5 - Electric Current and Circuits>Exercise>Q 84

In the circuit as shown in figure, the ratio of current

\frac{i_{1}}{i_{2}}

is

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JEE Advanced

IMPORTANT

PHYSICS for Joint Entrance Examination JEE (Advanced) Electrostatics and Current Electricity>Chapter 5 - Electric Current and Circuits>Exercise>Q 85

For the circuit shown in the figure, determine the charge of the capacitor in steady state.
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JEE Advanced

IMPORTANT

PHYSICS for Joint Entrance Examination JEE (Advanced) Electrostatics and Current Electricity>Chapter 5 - Electric Current and Circuits>Exercise>Q 86

In the circuit shown in figure

C_{1} = 2 C_{2}

. Switch S is closed at time

t = 0

. Let

i_{1}

and

i_{2}

be the currents flowing through

C_{1}

and

C_{2}

at any time

t

, then the ratio

\frac{i_{1}}{i_{2}}

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JEE Advanced

IMPORTANT

PHYSICS for Joint Entrance Examination JEE (Advanced) Electrostatics and Current Electricity>Chapter 5 - Electric Current and Circuits>Exercise>Q 87

When the switch

1

is closed, the current through the

8 Ω

resistance is

0.75 A

. When the switch

2

is closed (only), the current through the resistance marked

x

is

1 A

.

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The value of

ε

is

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JEE Advanced

IMPORTANT

PHYSICS for Joint Entrance Examination JEE (Advanced) Electrostatics and Current Electricity>Chapter 5 - Electric Current and Circuits>Exercise>Q 88

What is the equivalent capacitance between

A

and

B

in the circuit at steady state shown.
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EASY

JEE Advanced

IMPORTANT

PHYSICS for Joint Entrance Examination JEE (Advanced) Electrostatics and Current Electricity>Chapter 5 - Electric Current and Circuits>Exercise>Q 89

The potential of the point $O$ is
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