EASY
7th CBSE
IMPORTANT
Earn 100

Draw a simple circuit diagram of a circuit that includes a bulb and an open switch.

Important Questions on Electric Currents and Circuits

EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 4
Name three electrical devices each that utilise the heating effect of current.
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 4

Name three electrical devices each that utilise the magnetic effect of current.

MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 5
What is an electromagnet ?
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 6
In electromagnet, what is the advantage of the iron core?
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 1
Draw a diagram of a circuit that can be used to light an electric bulb, using a battery of three cells as the power source and a switch.
EASY
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 2
Why is a fuse wire necessary in a circuit? How does it work?
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 3
Draw the structure of an electric bulb and describe how it works.
MEDIUM
7th CBSE
IMPORTANT
New Science Ahead>Chapter 14 - Electric Currents and Circuits>Exercises>Q 4
What is a solenoid? Outline an experiment to demonstrate the magnetic effect of a solenoid.