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- 1. Multiple ChoiceTurning off an electric light creates a(n) _____ pathopendividedcontinuousbroken
- 2. Multiple ChoiceA flash of lightning is an example of an electric _____wattvoltagecurrentresistance
- 3. Multiple Choice
If a positive terminal of one cell is connected to the negative terminal of the next cell it is known as
Electric current
Fuse
Battery
Element
- 4. Multiple Choice
Wires made from some special materials melt quickly and break when a large electric current passes through it.these wires are used to make
Fuses
Electric fuses
A&B
Electromagnet
- 5. Multiple Choice
·Who was the first person to notice the deflection of compass needle everytime the current passes through the wire.
Hans Christian Andersen
Hans Christian oersted
Hans Christian mandorson
None of the above
- 6. Multiple Choice
A _________ is a safety device which prevents damages to electrical circuits and possible fires.
Battery
Fuse
Wire
none of the above
- 7. Multiple Choice
The amount of heat produced in a wire depends on
Material
Length
Thickness
All of these
- 8. Multiple Choice
Which mark is necessary on electric appliances?
AGMARK
ISI
FICCI
KSK
- 9. Multiple Choice
Current flows through the circuit when the circuit is in the _________________condition.
Broken
Open
Closed
Incomplete
- 10. Multiple Choice
The magnetic field around a current carrying coil
Lasts for three hours
Lasts as long as current flows through it
Lasts till its half-life period
Is permanent
- 11. Multiple Choice
A fuse wire is made up of alloy
Nichrome
Tin-lead
Manganin
Constantan
- 12. Multiple Choice
The device used to make or break an electric circuit is
Resistor
Battery
Switch
Ammeter
- 13. Multiple Choice
Which of the following devices does not work on heating effect of current?
electric bulb
fuse
electric bell
immersion rod
- 14. Multiple Choice
What is the full form of MCB?
Miniature Circuit Board
Miniature Circuit Breaker
Multimeter Circuit Board
- 15. Multiple Choice
Which of the following devices work on heating effect of the current? (Select all correct options)
Electric bulb
Electric iron
Electric bell
Fuse
immersion rod
- 16. Multiple Choice
What is true about electromagnets? (Select all correct options)
Their magnetism can be altered
When electric current is switched off, it does not behave like a magnet.
They cannot be as strong as a permanent magnet
Magnetism in electromagnet is natural.
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