Electric circuits

Question 1

Ohm’s law

Answer 1

The potential difference across a conductor is directly

proportional to the current in the conductor at constant temperature.

Question 2

emf

Answer 2

The maximum energy provided by a battery per unit charge passing through it.

Question 3

rms for an alternating voltage/current

Answer 3

The rms potential difference is the AC potential difference which dissipates/produces
the same amount of energy as an equivalent DC potential difference.
The rms current is the alternating current which dissipates/produces the same amount
of energy as an equivalent direct current (DC).