Question

what will be the new resistance of wire f potential difference is half ​

Answer 1

Answer: 1/2 × original resistance(R)

Explanation:

According to Ohm's Law,

V = IR

Therefore, R = V/I .............(1)

Let R1 be the new resistance of the wire and V1 be the new resistance .

Therefore, R1 = V1/2/I

R1 = 1/2 × (V/I)

Therefore, R1 = 1/2 × R