12.2 A current flows through an electric device of resistance 120 12
(a) Calculate the power of the device
(b) What changes to be done in the device to increase the power of the device without cha
the potential difference ?
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Answer:
step by step answer
Explanation:
given :-
current(I) = 12.2A
resistance(R) = 12Ω
Power (P) = I² x R
P = 12.2² x 12
P = 146.4 watts
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