A step up transformer has 5 loops on its primary coild and 20 loops on its secondary coil. If the primary coil is supplied with a 120 v 60 hz signal, what is the voltage in the secondary.

Atoaster oven has a resistive heating element. the average rate at which it dissipates energy as thermal energy is 1.00 \(\rm kw\). in the united states, emf amplitude in household circuits is \(\mathcal e_{\max}\) = 170 \({\rm \; v}\) and the \(\rm ac\) oscillation rate is 60 \(\rm hz\). part a what is the root-mean-square current through the heating element?