If a current of #5 A# passing through a circuit generates #400 W# of power, what is the resistance of the circuit?

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Answer 1 · 2018-06-22T06:06:08

The resistance is #=16Omega#

The curent is #I=5A#

The power is #P=UI=400W#

Ohm's Law is #U=RI#

Therefore,

#P=UI=RI^2#

The resistance is

#R=P/I^2=400/5^2=16Omega#