Calculate the amount of charge flowing in 2 min in a wire of resistance 10Ω when a potential difference of 20V is applied between its ends.
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
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.
Calculate the resistance of a resistor if the current flowing through it is 200 A when the applied potential difference is 0.8V