MEDIUM
7th CBSE
IMPORTANT
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What are the factors on which heating effect of current depends?

Important Questions on Electric Current and Its Effects

MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>Exercise 14.2>Q III
Give a brief description about short-circuit.
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>Exercise 14.2>Q III

Give a brief description of over-loading.

EASY
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>Exercise 14.2>Q III
What do you mean by magnetic effect of current?
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>Exercise 14.2>Q III
What is an electric fuse? What are the characteristics of electric fuse?
EASY
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>Exercise 14.2>Q III
Can we use the same fuse in a geyser and a TV set. Explain.
EASY
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>Exercise 14.2>Q III
Why do we cover plug pinholes which are within the reach of children with cello tape or a plastic cover when not in use?
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>Exercise 14.2>Q III

Why does the bulb in the circuit given below in figure does not glow? Draw the circuit with required change.
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MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 14 - Electric Current and Its Effects>Exercise 14.2>Q IV
What is a solenoid? Draw a diagram with a solenoid connected in a circuit. How can you increase the strength of a solenoid?