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Worksheetsclass 7
Total questions: 16
Worksheet time: 8mins
Identify the symbol here
Electric Cell
Switch
Battery
Bulb
How many terminals a cell has
Two, both positive
Two, both negative
Two, one positive and another negative
None of the above
An electromagnet does not attract a piece of iron
True
False
When the electric current passes through fuse exceeds a certain limit, the fuse wire melts and breaks
Ture
False
An electric bulb is an example of the heating effect of an electric current
True
False
A battery has one or more cells
True
False
Which of the following is most electricity efficient
Incandescent Bulbs
Compact Fluorescent Lamp (CFL)
Light Emitting Diode (LED) Lamp
Sodium Lamp
The coil of wire contained in an electric heater is known as:
Component
Element
Circuit
Spring
The filament of an electric bulb is made of:
Iron
Copper
Tungsten
Aluminum
Which mark is necessary on an electric appliance in India:
AGMARK
ISI
FICCI
KSK
Which mark is necessary on an electric appliance in India:
AGMARK
ISI
FICCI
KSK
What is the full form of MCB
(a)
Crane has a ----------------------------------- attached to it
(a)
------------------------- discovered the magnetic effect of current.
(a)
Which kind of lamp is shown in the picture
CFL
LED
Sodium Lamp
Incandescent
When an electric current passes through a wire, it behaves like a magnet. It is the --------------------------- effect of current.
(a)
