(a) Of what substance is the fuse wire made ? Why ? (b) Explain why, a copper wire cannot be used as a fuse wire.
What is a fuse wire ?
A fuse wire be
What is a fuse ?
(a) Of which material is a fuse-wire made of ? (b) Of which material is the element of an electric heater made of ?
A time wire with a circuit-sectional radius of 0.02mm blows with a current of 5 ampere for what current another fuse wire made from the same material with cross-section radius of 0.04 mm will blow?
Of what substance are the brushes of an electric motor made ?
The resistance of the fuse wire is
PRADEEP-CURRENT ELECTRICITY-Problems for Practice (B)