
A fuse wire is an alloy of lead and _____ (tin/iron).

Important Questions on Electric Current and Its Effects


Write the conventional symbol of the following component used in electric circuit diagram-
An electric cell



The diagram below shows a dual control switch circuit connected to a bulb. Out of A & B which one is the live wire and which one is the neutral wire?

Write the conventional symbol of the following component used in electric circuit diagram-
A wire joint


Correct the statements by modifying the underlined words appropriately if it is wrong.
Heating coils are made up of materials having high resistivity and low melting point.

Write the conventional symbol of the following component used in electric circuit diagram-
Electric bulb



(i) The wire is also called as the phase wire.
(ii) The wire is connected to the top terminal of a three pin socket.

In the given circuit diagram, identify the objects marked as .




When current is passing through a conductor in seconds, heat is produced then find the resistance of conductor.



