If a current of #4 A# passing through a circuit generates #12 W# of power, what is the resistance of the circuit?

1 Answer
Jan 1, 2016

0.75 ohms

Explanation:

The power generated by a circuit in terms of the current flowing through it and its resistance is given by:

#P=I^2R#

where,

#P# is the power generated;
#I# is the current through the circuit,
and #R# is the circuit's resistance.

Substituting the values, we have:

#12=(4)^2R#

#12=16R#

#R=12/16=0.75 Omega#