Question

Q.1-a) State ohm's law. Give graph between V and I.
b) what is fuse? Why fuse is made up of alloy rather than metal​

Answer 1

Ohm 's law.

Ohm's law said that potential difference is directly proportional to electric current.

Ohm's law - according to its law, the current flowing in the circuit is directly proportional to potential applied across the two ends of the conductor. provided ,physical condition remain same.

2) Fuse

An electrical fuse is a safety device in the circuit that protects electrical systems by breaking the connection when a short circuit is occurring.

The fuse wire is made up of Sn (tin) and Pb (lead) alloy

Because of its high resistance and low melting.This is the reason why fuse is made of alloys than metal.