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10 questions
What is the symbol for a cell?
Identify closed circuit.
A _________ is a safety device which prevents damages to electrical circuits and possible fires.
Battery
Fuse
Wire
Which one of the following is based on the heating effect of current?
Geyser
Immersion rod
Hair Dryer
All of these
The coil of wire contained in an electric heater is known as
Component
(b)
Element
Circuit
Spring
The amount of heat produced in a wire depends on
Material
Length
Thickness
All of these
Which mark is necessary on electric appliances?
AGMARK
ISI
FICCI
KSK
When an electric current flows through a wire, it behaves like a magnet.
True
False
Crane has a strong ………………….. attached to it
Electric circuit
Electromagnet
Electronic device
When an electric current flows through a copper wire AB as shown in Figure, the wire
deflects a magnetic needle placed near it
becomes red hot
gives electric shock
behaves like a fuse
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