A component which is used to close or break a circuit, is
A. bulb
B. switch
C. wire
D. electric cell
Related Questions on Chapter 5: Electric Circuits - Science Mcqs for Grade 7
When electric charge moves through electrical conductor, there is a production of
A. electric current
B. electrical charge
C. electric cell
D. electric circuit
The measure of rate of flow of electric charge through an electrical conductor is known as
A. electric current
B. electrical charge
C. electric cell
D. electric circuit
If electric wires and appliances are overheated due to high voltage of electric current they can
A. catch fire
B. burn
C. freeze
D. both a and b
A diagram drawn by using symbols which represents electrical components is called
A. circuit diagram
B. current diagram
C. charges diagram
D. electric diagram