As per Ohm's law, V (potential difference) is equal to
As compare to short wires, long wires have
A resistor having resistance 6.2O is connected across a battery of 5 V by means of a wire of negotiable resistance. Current passes through resistor is 0.4 A. total power produced by battery is
If 0.6 C charge passes through a wire in 12 s, then current flowing through wire is
Copper wire having same size of steel wire have
As compare to thin wires, thick wires have