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kundan

· started a discussion

· 1 Months ago

wrong answer (Question: 308561.0 )

heat generated= I^2*R

Question:

A heater coil is cut into two equal parts and only one part is now used in heater. The heat generated will now be:

Options:
A)

One fourth

B)

Halved

C)

Doubled

D)

Four times

Solution:

Ans: (c) ∵ P = V2/R

When coil cut into two equal parts then resistance of each will be halved so heat generated will be doubled.

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