Question

a wire of length one metre and resistance of 10 ohm is shaped in the form of a circular ring and it connected across the potential difference of 4 volt along a diameter find the equivalent resistance and total current flowing through the circuit

Answer 1

The equivalent resistance is 1/4 of the resistance . So,

Rn2=10/4

Now v =Ir

V= 4v

4/10/4=I

16/10=I

1.6