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Electrical Engineering - Electrostatic MCQs
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Electrical Engineering - Electrostatic MCQs
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25 Questions

1. A single core cable used on 33000 V has conductor diameter 10 mm and the internal diameter of sheath 25 mm. The maximum electrostatic stress in the cable is
2. The power dissipated in a pure capacitor is
3. For making a capacitor, it is better to select a dielectric having
4. The total deficiency or excess of electrons in a body is known as
5. Which of the following statements is correct ?
6. The capacitance C is charged through a resistance R. The time constant of the charging circuit is given by
7. Which of the following statements is incorrect ?
8. For which of the following parameter variation, the capacitance of the capacitor remains unaffected ?
9. Capacitance increases with
10. The phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as
11. capacitors are used in transistor circuits.
12. When 4 volts e.m.f. is applied across a 1 farad capacitor, it will store energy of
13. An electrolytic capacitor is generally made to provide
14. A dielectric material must be
15. The presence of an uncharged conductor near a charged one increases the
16. 'The total electric flux through any closed surface surrounding charges is equal to the amount oflcharge enclosed'.The above statement is associated with
17. Energy stored in the electric field of a capacitor C when charged from a D.C source of voltage V is equal to joules
18. The capacitance between two plates increases with
19. One volt is the same as
20. Electric field intensity is a quantity
21. Air capacitors are generally available in the range
22. Which of the following capacitors preferred for high frequency circuits ?
23. If a 6 uF capacitor is charged to 200 V, the charge in coulombs will be
24. The direction of electric field due +0 positive charge is .
25. Two infinite parallel plates 10 mm apart have maintained between them a potential difference of 100 V. The acceleration of an electron placed between them is