Chapter 16: Electric current and circuit
Authored by Angelita Comilang
Physics
7th Grade
Used 39+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Full form of MCB is _____
miniature circuit breaker
most circuit breaker
maximum circuit breaker
minimum circuit breaker
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The strength of an electromagnet can be increased by _____
increasing the number of turns of conducting wires
decreasing the number of turns
decreasing the strength of current
all of the options
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the shape of the magnet used in an electric bell?
cylindrical
bar
horseshoe
square
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component of a circuit converts chemical energy into electrical energy?
electric cell
electric bell
connecting wire
electric switch
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following appliances does not use the heating effect of current?
electric heater
electric bell
electric geyser
electric bulb
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
The (a) works on the principle of heating effect of current.
7.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
(a) is used to make filament of a bulb.
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