A 6 µF capacitor is charged to 360 V. If its plates are joined throug

1.	A 6 µF capacitor is charged to 360 V. If its plates are joined through a resistance, then heat produced in the resistor is(a) 0.78 J(b) 0.68 J(c) 1.2 J(d) 0.39 J
Answer» Answer is : (d) 0.39 J Heat produced in the resistor = Energy of capacitor = \(\frac{1}{2}CV^2\) = \(\frac{1}{2}\) x 6 x 10^-6 x 360 x 360 = 0 39 J

A 6 µF capacitor is charged to 360 V. If its plates are joined through a resistance, then heat produced in the resistor is(a) 0.78 J(b) 0.68 J(c) 1.2 J(d) 0.39 J

Answer»

Answer is : (d) 0.39 J

Heat produced in the resistor

= Energy of capacitor = \(\frac{1}{2}CV^2\)

= \(\frac{1}{2}\) x 6 x 10^-6 x 360 x 360

= 0 39 J

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A 6 µF capacitor is charged to 360 V. If its plates are joined through a resistance, then heat produced in the resistor is(a) 0.78 J(b) 0.68 J(c) 1.2 J(d) 0.39 J

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