Question

1. Support the following statement with
reason:
a. Wire of low melting point is used in a
fuse.
b. Heating coil in a heater is of a metal
with high melting point.
C. The bulb of an incandescent lamp is
filled with nitrogen gas.
d. Heating effect increases with the passage
of time.
e. Electromagnets have advantage over
permanent magnets.
f. A fluorescent tube consumes less
current than an incandescent lamp to
give brighter light.​

Answer 1

Answer:

a. Wire of low melting point is used in a fuse so that it can melt fast and break the connection of circuit in order to avoid short circuit.

b. Heating coil in a heater is of a metal with high melting point so that it should not melt even after a large amount of heat is produced in it.

c. In order to avoid oxidation or reduction of the solenoid coil in the bulb, the bulb of an incandescent lamp is vaccum or filled with nitrogen gas.

d. Heat goes on increasing with the passage of time due to collection of heat at one place. Thus, heating effect also increases with the passage of time.

e. & f. I don't know :)

Explanation:

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