Question

What is the current in the element of an electric clothes dryer with a resistance of 7.0 ω when it is connected to 240 v?

Answer 1

We can solve the problem by applying Ohm's law:

`V=IR`
where
V is the voltage in the circuit
I is the current in the circuit
R is the resistance

The element of the dryer of the problem has a resistance of
`R=7.0 \Omega`, and the voltage applied to the circuit is
`V=240 V`, so we can use the previous relationship to calculate the current flowing in the element of the dryer:

`I= (V)/(R)= (240 V)/(7 \Omega)=34.3 A`