Match the symbols used in electric circuit diagrams to their functions.
nos
e
a device that converts electric
energy into sound energy
a device that glows when it
receives current
receives current
tavice wat provides energy
a device that provides energy
to a circuit
a device that starts or stops
the flow of current

The question doesn't provide specific symbols to match, but I'm giving you some everyday common examples to help you out with your own assignment.

Examples below

Explanation:

Electric Devices

Electricity can be converted into an great quantity of other forms of energy, like chemical, mechanical, thermal, nuclear, potential, among many others.  

The devices listed below convert electricity in the following ways

current flows in a wire