Question

A 4 OHM resistance wire is doubled on it calculate the new resistance of the wire​

Answer 1

Answer:

R=4 ohm

R= rho L/A

If L= 2L

R1= rho 2L/A

R1= 2(rho L/A)

R1= 2(R)

R1= 2(4) = 8 ohm