NEET Physics Ohm's Law MCQ Question with Solution

What happens to the resistance of a conductor when its length is doubled?

A

The resistance doubles.

B

The resistance halves.

C

The resistance remains the same.

D

The resistance quadruples.

Correct Answer

Option A

Detailed Explanation

According to Ohm's Law, the resistance of a conductor is directly proportional to its length. Therefore, if the length is doubled, the resistance also doubles.

Found an issue with this question?

Related Questions

More from Ohm's Law

Assertion (A): The equivalent emf of two cells in parallel is the sum of their emfs divided by the sum of their internal resistances. | Reason (R): Th...

Physics

Which of the following statements best defines when a conducting material obeys Ohm's law?

Physics

More from

Consider a diagram showing a rectangular slab of length \( l \) and area of cross-section \( A \). If the resistance \( R \) of the slab is given by t...

(general)Physics

If a Wheatstone bridge is balanced and the resistances are R1 = 10 Ω, R2 = 15 Ω, and R3 = 20 Ω, what should be the value of R4?

Wheatstone BridgePhysics

A silver wire has a resistance of 2.1 Ω at 27.5 °C and a resistance of 2.7 Ω at 100 °C. What is the temperature coefficient of resistivity of silver?

Resistance & ResistivityPhysics

Explore More Questions

All Physics Questions Current Electricity Questions