
Electric current, and its effects
Authored by Hermine Navika
Science
7th Grade
Used 7+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following cannot be an example for the use of electromagnets
Electric Bell
Doorbells
Oven
Phone
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The device used to make or break an electric circuit is
Resistor
Battery
Switch
Ammeter
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Current flows through the circuit when the circuit is in the _________________condition.
Broken
Open
Closed
Incomplete
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The amount of heat produced in a wire depends on
Material
Length
Thickness
All of these
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Who discovered Magnetic effect of current?
Nikola Tesla
Charles Lyell
Hans Christian Oersted
Charles Darwin
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which mark is present on electric appliances to ensure their safety?
MCB
FSSAI
ECB
ISI
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