Exercises
S K Jain Science Solutions for Exercises
Simple step-by-step solutions to Exercises questions of Electricity and Circuits from Science Based on the Rationalised NCERT Content. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from Exercises with Hints & Solutions
Why does the bulb not glow in the given circuit? Give a reason.
What arrangement will make the bulb glow?
How does electricity flow in an electric circuit? What is meant by a closed circuit?
What is the role of an electric switch in a circuit? What kind of material is used for making the body/casing of electrical switches?
Describe an experiment to find out whether the given material is a conductor or an insulator.
Is the human body a conductor or nonconductor of electricity?
An electrician while handling any electrical appliance/circuit wears rubber shoes and/or rubber gloves. Why?
Why are solar cell panels used in artificial satellites/space stations?
Solve the puzzle with the help of the clues given:
ACROSS
1. The material that does not allow heat and electricity to pass through it. (9)
2. Converts solar energy into electrical energy. (9)
3. Permits electricity to pass through it. (9)
DOWN
4. The substance of which the outer container of a dry cell is made of. (4)
5. On-off mechanism in any electric circuit. (6)
6. A combination of two or more cells. (7)
7. Source of electrical energy in a torch. (7)
8. A small spiral of thin wire in a bulb. (8)
