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A 1^(@) C rise in temperature is observe...

A `1^(@) C` rise in temperature is observed in a conductor by passing a certain current . If the current is doubled , then the rise in temperature is approximately

A

`2.5 ^(@) C`

B

`4 ^(@) C`

C

`2 ^(@) C`

D

`1 ^(@) C`

Text Solution

Verified by Experts

The correct Answer is:
B
When current is doubled , heating effect increases four times.
Now , `Q prop Delta T`. So, `Delta T` increases four times.
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