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Question-1
Heater, Rice cooker, Toaster,Electric kettle,Iron,Immersion rod are some gadgets we use often.In these appliances the 'elements'are made from ________ wire.
(A)
nichrome
(B)
copper
(C)
brass
(D)
aluminium
Question-2
When the chemicals in the electric cell are used up,the electric cell___________ producing electricity.
(A)
starts
(B)
stops
(C)
continues
(D)
none of these
Question-3
If the current in the circuit is too much the fuse wire gets _________ and melts.
(A)
cool
(B)
hot
(C)
ice
(D)
burnt
Question-4
__________ allows electricity to flow through
(A)
conductor
(B)
insulator
(C)
battery
(D)
switch
Question-5
Electricity starts from the _________ terminal.
(A)
negative
(B)
positive
(C)
both
(D)
none
Question-6
In a ___________ circuit there is more than one path for the flow of electricity.
(A)
parallel
(B)
series
(C)
horizontal
(D)
vertical
Question-7
The force or push that sends the current through a circuit is measured in ____________.
(A)
degrees
(B)
volts
(C)
volt meter
(D)
voltage
Question-8
A car battery is a _________ cell.
(A)
secondary
(B)
primary
(C)
tertiary
(D)
none of these
Question-9
________ is a collection of cells.
(A)
Bulb
(B)
battery
(C)
fuse
(D)
wire
Question-10
__________ are used in electric motors,electric bells,telephones and many other devices.
(A)
electro magnets
(B)
magnets
(C)
fuse
(D)
MCB
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Std 7
CBSE
Practice in Related Chapters
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