Which of the two circuits 5 ampere or 15 ampere requires a thin fuse wire?

State two characteristics of a fuse wire.

Which of the following characterstics is immaterial for the fuse wire?

An e.m.f. of 50 millivolt is induced in a coil, when the current int eh neighbouring coil changes form 10 ampere to 5 ampere in 0.1s . What is the mutual inductance of the coils?

Two concentric coils each of radius equal to 2 pi cm are placed at right angles to each other 3 ampere and 4 ampere are the currents flowing in each coil respectively. The magnetic induction in weber//m^(2) at the centre of the coils will be ( mu_(0) = 4 pi xx 10^(-7) Wb// A.m)

A primary cell has an e.m.f. 1.5 volt. When short circuited, it gives a current of 3 ampere. The internal resistance of the cell is

A solution of CuSO_4 is electrolysed for 10 minutes with a current of 1.5 amperes. What is the mass of copper deposited at the cathode?

A fuse wire melts at 5A. If it is desired that the fuse wire of the same material melt at 10A, then should the new fuse wire be of smaller or larger radius than the earlier one? Give reasons for your answer.

What mass of zinc can be produced by the electrolysis of zinc sulphate solution when a current of 1.5 amperes is passed for 15 mnutes ? Atomic mass of zinc =65.4 a.m.u.

What mass of zinc can be produced by the electrolysis of zinc sulphate solution when a current of 1.5 amperes is passed for 15 minutes ? The atomic mass of zinc=65.4 amu.