Question

The heat generated through 2 ohm and 8 ohm resistances separately, when a condenser of 200$\mu F$ capacity charged to 200 V is discharged one by one, will be

• A. 4 J and 16 J respectively
• B. 16 J and 4 J respectively
• C. 4 J and 8 J respectively
• D. 4 J and 4 J respectively

Answer 1

Answer: (D)

4 J and 4 J respectively

Answer 2

Heat generated in both the cases will be same because the capacitor has the same energy initially

$= \frac{1}{2}CV^{2} = \frac{1}{2} \times 200 \times 10^{- 6} \times (200)^{2} = 4J$