A metal wire connected across a 10V power supply dissipates 1000 J of heat in one and half minutes. what is resistance of wire?
Answers
Answered by
1
Answer:
Explanation:
H = V²Rt (Joules Heating Effect )
1000 J = (10)²R(90)
1000J = 100 x 90 (R)
1000J = 9000 R
1000/9000 = R
1/9 = R
R = 0.11Ω
Answered by
1
Answer:
the answer is 9Ω
Explanation:
use the formula
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