Click the correct answer (True or False).
Click the correct answer.
Which of the following devices converts electric energy to electric current?
An electric cell
Electric wires
An electric bulb
A switch
Which of the following device helps in making and breaking of electric circuit?
Electric cell
Electric bulb
Electric wire
Electric switch
Electric current can flow through which of the following?
Human body
Graphite
Mercury
All of these
When does an electric bulb in an electric circuit glow?
Positive terminal of electric bulb connected to negative terminal of electric cell
Negative terminal of electric bulb connected to positive terminal of electric cell
Positive terminal of electric bulb connected to positive terminal of electric cell
All of these
Click the correct answer.
allow electric current to flow through them.
Conductors
Insulators
Semiconductors
wood
Switch is used for
electric circuit.
making
breaking
both making and breaking
completing
Wood, cotton and plastic are
.
conductors
insulators
semiconductors
magnetic
Electric current flows through a
loop.
closed
open
semi closed
round
Electric wires are covered with
.
plastic
rubber
paper
cloth
