Question

100 J OF HEAT IS PRODUCED EACH SECOND IN A 4 COULUMB RESISTER. THE POTENTIAL DIFFERANCE ACROSS THE RESISTER WILL BE

Answer 1

Answer:

The correct answer is "20 Volts".

Explanation:

Given:

Heat,

H = 100 J

Resistance,

R = 4 Ω

As we know,

⇒ $P=\frac{v^2}{R}$

By putting the values, we get

⇒ $100=\frac{v^2}{4}$

⇒  $v^2=100\times 4$

⇒       $=400$

⇒    $v=\sqrt{400}$

⇒       $=20 \ volts$