JEE Main

AI Gen: Current Electricity question bank (Physics)

Practice 24 free JEE Main Physics - AI Gen: Current Electricity questions with answers and step-by-step solutions.

Q1.

A uniform metallic wire of resistance $20\text{ \Omega}$ is bent into a complete circle. The effective resistance between two points diametrically opposite on the circle is:

Topic: Current Electricity | Source: AI Generated (JEE Main)

(A)
$20\text{ \Omega}$
(B)
$5\text{ \Omega}$
(C)
$10\text{ \Omega}$
(D)
$2.5\text{ \Omega}$
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Q2.

In a meter bridge experiment, the null point is obtained at $40\text{ cm}$ from the left end when a standard resistance of $R = 10\text{ \Omega}$ is connected in the right gap. The value of the unknown resistance in the left gap is:

Topic: Current Electricity | Source: AI Generated (JEE Main)

(A)
$15\text{ \Omega}$
(B)
$\frac{20}{3}\text{ \Omega}$
(C)
$6\text{ \Omega}$
(D)
$\frac{10}{3}\text{ \Omega}$
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