Give one property that a fuse wire should have.

Important Questions on Electric Current and Its Effects

EASY

7th CBSE

IMPORTANT

Exam Guru Science>Chapter 14 - Electric Current and Its Effects>Exercise 14.2>Q II

Why are CFL’s preferred over electric bulbs?

MEDIUM

7th CBSE

IMPORTANT

Exam Guru Science>Chapter 14 - Electric Current and Its Effects>Exercise 14.2>Q III

What are the factors on which heating effect of current depends?

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?