Question

31. (a) List the factors on which the resistance of a conductor in the shape of
a wire depends.
(b) Why are metals good conductors of electricity whereas glass is a bad
conductor of electricity ? Give reason. ,
(c) Why are alloys commonly used in electrical heating devices? Give
reason​

Answer 1

Answer:

metals are good conductors of electricity as they have free electron which is necessary for electricity conduction...

alloys are used ìn electrical heating devices because of their high resistance