What is an ISI mark? What is its significance?

Important Questions on Electric Current and its Effects

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q D

How can we increase the strength of an electromagnet?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q E

How will you show experimentally that when the amount of current is increased through a conductor, it produces more heat?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q E

What is an electric fuse? How does it work and what is its significance?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q E

Explain the structure and working of an electric bell with the help of a diagram.

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q E

Which of the following electromagnets is the strongest?

EASY

7th CBSE

IMPORTANT

Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q E

Which of these is a correct symbol of a cell?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q E

In which of the following circuits, the bulb is going to glow?

MEDIUM

7th CBSE

IMPORTANT

Science Booster>Chapter 15 - Electric Current and its Effects>PRACTICE TIME>Q E

Draw a circuit diagram showing a glowing bulb with a battery of two cells.