Question

If the current I through a resistor is increased by 100% (temperature is constant) the increase in power dissipated will be

Answer 1

Answer:

300%

Explanation:

Let the original value of current is I ampere.

The new value of current I  

=I+100%I=2I.

Now, the new power P  

=I    

2

R=4I  

R=4P.

So, the change in power  = P  

 −P=3P

Therefore, the change in power in terms of percentage is 300%.

Hence, the increase in power dissipated will be 300%.

Answer 2

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