Question

A solenoid is at potential difference of 60V and current flows through it is 15 ampere, then the resistance of coil will be:

• A. $4\Omega$
• B. $8\Omega$
• C. $0.25\Omega$
• D. $2\Omega$

Answer 1

The correct option is A $4\Omega$

By definition,
R$=\frac{V}{i}⟹R=\frac{60}{15}=4\Omega$