You know that according to Joule 's Law, more heat will be produced when electric current is increased . What happens to the fuse wire due to this ?

When the fuse wire melts , the circuit is broken. What happens to the current in the circuit ?

Write down the reasons for the following statements . Fuse wire is melt when electric current increased .

According to Joule 's Law the heat generated due to flow of current is H = I^2 Rt . Will the heat developed increase on increasing the resistance without changing the voltage ? Explain.

According to Newton's law of motion,the force depends on the rate of change of momentum. What happens to the linear momentum when the force is absent?

Under an extemal electric field electrons drift slowly inside the conductor. When temperature increases what happens to drift velocity?