A current 0. 2 A flows in a wire of resistance 15 Ω. Find the potential difference across the ends of the wire.
Current = 0.2 A.
resistance = 15 ohm.
V= I x R
x=0.2 x 15
potential difference =3 v .
When a potential difference of 2v is applied across the end of a wire of 5 m length a current 1 amp flows through it calculate
(a) the resistance across the ends of the wire if it is doubled on itself
Calculate the potential difference across the ends of a wire with resistance 2 ohms when a current of 1.5 A passes through it.
When a potential difference of 2 V is applied across the ends of a wire of 5 m length, a current of 1 A flows through it. Calculate the resistance across the ends of the wire if its length is doubled.