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Class 10 Science Medium Mcq English Medium

100 J of heat is produced each second in a 4 ohm resistor. The current through the resistor is:

Question
100 J of heat is produced each second in a 4 ohm resistor. The current through the resistor is:
4 A
5 A
16 A
25 A
Answer
5 A
Detailed Explanation
Using H = I^2 R t: 100 = I^2 x 4 x 1, so I^2 = 25, I = 5 A.
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