Question

A 4µF condenser is charged to 400 volts and then plates are joined through a resistance of 1 kΩ The heat produced in the resistance is:

विकल्प

• l.28J

• 0.64J

• 0.32J

• 0.16J

Answer 1

0.32J

Explanation:

Heat generated = energy stored in the condenser

= `1/2` CV² = `1/2 xx 4 xx 10^-6 (400)^2`

= 0.32J.