Question

An electric iron of resistance 10 ohm draws a current of 10 amperes.calculate the heat produced in 10s

Answer 1

Answer :

Given -

• Resistance = 10 ohm
• Current = 10 A
• Time = 10 s

To Find -

• Heat produced ?

Solution -

Joule's Law : The heat produced in the circuit is directly proportional to the square of the current, Resistance and time.

So, H = I²Rt.

Therefore, Heat Produced = 10²*10*10

⇒ H = 100*10*10

⇒ H = 10,000 J

So, the Heat Produced by the circuit = 10,000 J.