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Worksheets12th
Total questions: 18
Worksheet time: 54mins
Name
Class
Date
1.
Define ‘electric field’.
4 lines
2.
Write a short note on ‘electrostatic
shielding
4 lines
3.
The electric field lines never intersect.
Justify.
4 lines
4.
Distinguish between drift velocity and
mobility
4 lines
5.
State Kirchhoff’s current rule.
4 lines
6.
What is Thomson effect?
4 lines
7.
State Biot-Savart’s law.
4 lines
8.
What is meant by hysteresis?
4 lines
9.
Give the properties of dia / para /
ferromagnetic materials.
4 lines
10.
Define ampere.
4 lines
11.
State Fleming’s right hand rule
4 lines
12.
How will you define Q-factor?
4 lines
13.
What are step-up and step-down
transformers?
4 lines
14.
Give the principle of AC generator.
4 lines
15.
What is meant by electromagnetic
induction?
4 lines
16.
What are Fraunhofer lines? How are
they useful in the identification of
elements present in the Sun?
4 lines
17.
Give two uses each of (i) IR radiation,
(ii) Microwaves
4 lines
18.
What is displacement current?
4 lines
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