Question

1 A current flows though a conductor of resistance 10 ohms for 1/2 minute. How much heat is produced in the conductor?

Answer 1

Dear Student,

◆ Answer -

H = 300 J

● Explanation -

# Given -

I = 1 A

t = 1/2 min = 30 s

R = 10 ohm

# Solution -

Heat produced in the conductor is given by formula -

H = I²Rt

Substitute values,

H = 1² × 10 × 30 s

H = 300 J

Therefore, 300 J heat energy is produced by the conductor.

Thanks dear. Hope this helps you..

Answer 2

Answer:

300 J.

Explanation:

The amount of heat energy produced in a conductor is given by

$H = I^2Rt$.

where,

• $I$ = current flowing in the conductor.

• $R$ = resistance of the conductor.

• $t$ = time for which the current flows through the conductor.

Given:

• $I=1\ A$.

• $R=10\Omega$.

• $t=\dfrac 12\ \text{minutes}=30\ s$

Putting these values,

$H = 1^2\times 10\times 30 = 300\ J.$