400 J heat is produced in 4s in a 4ohm resistor. Find potential difference across the resistor
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Answered by
13
20 volt is the answer.
formulae used:
• power = work done or energy/time
• power = V^2/R
formulae used:
• power = work done or energy/time
• power = V^2/R
Tanya1111111:
the answer given is wrong because power =workdone /charge not time
Answered by
2
V^2÷R×t =400
V^2=400
V =20 volt
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