If a current of #8 A# passing through a circuit generates #34 W# of power, what is the resistance of the circuit?

1 Answer
Mar 4, 2016

The power is dependant on the voltage and the current.
#p=UxxI# or: Watt=Volt x Ampere

Explanation:

#p=UxxI->U=(p)/(I)#
Fill in what we know:
#U=34/8=4.25V#

For a this voltage to generate this current the resistance follows Ohm's law:
#R=(U)/(I)# or Ohm=Volt/Ampere
Or:
#R=4.25/8=0.53125Omega~~0.53Omega#