9. Match Column I with Column JI
Column 1
(a) A magne; c device used for nding
geographic direccions
(b) A device which is essenyal in an electric bell
(c) A fuse used in expensive and sensi ve electric devices
(d) An alloy used as a material of fuse wire
(e) A material used for making clament of a bulb
(f) A material which does not allow the electric current to pass
(g)A material used for making electromagnets
Column II
(i) Cartridge fuse
(ii) Wax
(iii) Magnetic needle a
(iv) Tungsten
(v) Fusible alloy
(vi) Electromagnet
(vii) So iron
Answers
Answer:
answer is-c, ii] answer is-e
Explanation:
l hope that you 0
Explanation:
Fuses are safety devices that are to be built into our electrical system. If there were no fuses and we operated too many appliances on a single circuit, the cable carrying the power for that circuit would get extremely hot, short circuit, and possibly start a fire. To prevent electrical overloads, fuses are designed to trip or blow, stopping the flow of current to the overloaded cable.
Fuse is a piece of wire of a material with a very low melting point. When a high current flows through the circuit due to overloading or short circuit, the wires gets heated and melts. As a result, the circuit is broken and current stops flowing.
Hence, the statement is true as the material used for fuse has low melting point.
