Question

10. A current of 0. 2A flows through a wire whose ends are at a potential difference of 15 V. Calculate (i) the resistance of the wire, and (ii) the heat energy produced in 1 minute. ​

Answer 1

Answer:

Solution - We know,

By ohm's Law,

V=IR

⇒15=(0.2)R

⇒(3)×5×5=R

⇒R=75Ω

By Joule's Law,

P=VI

P−(15)(0.2)

P=3w