200j of heat is produce in one second from a resitor of resistance 8 ohm. find the potential diffrence across the restor and it power
Answers
Answered by
2
Answer:
H (heat) = 200 J
t = 1 sec
R = 8 ohm
H = I^2 Rt
200 = I^2 * 8 * 1
I^2 = 25
I = 5 A
V = IR
V = 5 * 8 = 40 V
P = IV
P = 5 * 40 = 200 W
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Answered by
1
Answer:
V= 40V; P= 200W
Explanation:
H= I²Rt
200 = I² x 8 x 1
I² = 200/ 8
I =√25
I = 5 A
V= IR
= 5 x 8
= 40 V
P = VI
=40 x 5
= 200 W
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