Question

The potential difference applied across a given resistor is altered so that the heat produced per second increases by a factor of 9. by what factor does the apllied potential difference change?

Answer 1

Let original Potential difference applied is V and original Heat Produced is H. 

Then, H = V^2t\over R…………(1)

New potential difference is V' and Heat Produced after change is H'.

Then, 

H' = {V'^2t\over R} …………(2)

According To question,

H' = 9H

=> {V'^2t\over R} =9\times {V^2t\over R} 

=> V'2 = 9V2

=> V' = 3V

So potential difference is increased by a factor 3.

Answer 2

Answer:

Explanation:

Secondary School Physics 13+7 pts

The potential difference applied across a given resistor is altered so that the heat produced per second increases by a factor of 9. by what factor does the apllied potential difference change?

Report by Yogirajmaliya6805 12.02.2018

Answers

DhabhaikhushiAmbitious

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Shaizakincsem

ShaizakincsemSamaritan

Let original Potential difference applied is V and original Heat Produced is H.

Then, H = V^2t\over R…………(1)

New potential difference is V' and Heat Produced after change is H'.

Then,

H' = {V'^2t\over R} …………(2)

According To question,

H' = 9H

=> {V'^2t\over R} =9\times {V^2t\over R}

=> V'2 = 9V2

=> V' = 3V

So potential difference is increased by a factor 3.