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7th CBSE
IMPORTANT
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Important Questions on Electric Current and Its Effects

EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q 6
Which of the following is used for checking the magnetic effect in a circuit?
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q 7
Which of the following is a component of an electric bell?
 
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q 8
Which of the following is separated by electromagnets in scrapyards?
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q 1
_____ is defined as the flow of electric charges through conducting materials. (Choose from: Eddy current/ Electricity)
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q 2
It is always convenient to draw electric circuits by using standard _____ for each component.
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q 3
A battery provides more energy than a _____ in an electric circuit.
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q 4
The resistance to the flow of electric current generates _____.
MEDIUM
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 17 - Electric Current and Its Effects>EXERCISE>Q 5
Both a filament in a bulb and an element of a heater have high _____ points.