a resistor develops 800J of thermal energy 8 s when a current of 5 A is passing through it. the resistance of resistor will be
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Answered by
1
Answer:
resistance =4 ohm
Explanation:
800=25×R×8
R=4 ohm
Answered by
0
Answer:
using U=i2Rt,
400J=(2A)2R(10s)
or, R=10(Ω).
(b) The thermal energy devoloped, when the current is 4 A, is
U=i2Rt
=(4A)2×(10(Ω))×(10s)=1600J.
Explanation:
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