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CTET Prep: Science Questions - Physics - Electricity and Magnetism
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Electromagnetism is an interaction that occurs between particles with electric charge via electromagnetic fields. The electromagnetic force is one of the four fundamental forces of nature. It is the dominant force in the interactions of atoms and molecules.

CTET Prep: Science Questions - Physics - Electricity and Magnetism
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25 Questions

1. The heating element of an electric heater should be made of a material having
2. If a proton is brought towards an electron from infinity, the potential energy of the system will
3. Which one of the following nonmetals is not a poor conductor of electricity?
4. Choose the correct statement:
5. In the electrical circuit (ABC) as shown in the figure given below, the resistance R1, R2 and R3 are same and equal to 30 W. If a source of voltage 2V is connected across one arm, the current drawn from the voltage source is 2V + – B R2 R3 A R1
6. A strong magnetic field is applied on a stationary electron, then the electron
7. When an AC source is connected across a resistor
8. Which one of the following is not made of soft iron?
9. Which of the following is not correctly matched?
10. Electricians use rubber gloves while working because
11. Laws of heating are given by
12. Demagnetisation of a magnet can be done by
13. The split ring in motion is called
14. Consider the following statements regarding electric fuse wire:
1. It has low melting point.
2. It has very high specific resistance.
3. It is connected in parallel with the electric circuit. Which of the statements given above is/are correct?
15. For measuring very high temperature, we use
16. Indiscriminate disposal of used fluorescent electric lamps causes mercury pollution in the environment. Why is mercury used in the manufacture of these lamps?
17. Equal charges are given to two spheres of different radii. The potential will be
18. The current I and voltage V variations for a given metallic wire at two different temperature T1 and T2 are shown in the figure. Then, which one of the following is correct? I V T 1 T 2
19. Consider the following statements: At the present level of technology available in India, solar energy can be conveniently used to
1. Supply hot water to residential buildings.
2. Supply water for minor irrigation projects.
3. Provide street lighting.
4. Electrify a cluster of villages and small towns.
20. Alternating current instead of direct current is used in long distance electric transmission because
21. The resistance of an ideal ammeter is
22. A substance which radiates light when heated to a light temperature is each to be
23. In a dry cell (battery), which of the following are used as electrolytes?
24. The time constant in seconds of an electrical circuit containing a capacitance of C units and resistance of R units. As shown in the figure,is given by C R Source voltage
25. A permanent magnet repels