Test SeriesFree PYQsExamsPricing

MHT CET Physics question

PhysicsCurrent ElectricityMHT CET

If a wire of resistance is uniformly stretched until its length becomes three times its original length then its new resistance is

Answer: (B)

Solution

On uniform stretching the volume is constant, so R ∝ l²; R′ = 3² × 25 = , while

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-044917