Home Physics Current Electricity NCERT A constant voltage is applied between the tw…
Physics Current Electricity NCERT MCQ (Single Correct)

A constant voltage is applied between the two ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if

A
both the length and the radius of the wire are halved
B
both the length and the radius of the wire are doubled
C
the radius of the wire is doubled
D
the length of the wire is doubled

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The correct answer is:
B

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