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A heating coil transforms 100J of electr...

A heating coil transforms `100J` of electrical energy into heat energy per second. The coil is cut into two halves and both the halves are joined togeter in parallel to the same source. Now the energy transformed per second will be

A

50J

B

100J

C

200J

D

400J

Text Solution

Verified by Experts

The correct Answer is:
D
`(V^(2))/(R ) = 100W`
`(V^2)/(R//4) = 4(V^2)/( R ) = 400W`.
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