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Electrostatic and Capacitance

Electrostatic and Capacitance
XC is inversely proportional to frequency and capacitance.

1

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Electrostatic and Capacitance
The capacitance C is charged through a resistance R. The time constant of the charging circuit is given by

C/R
RC
1/RC
R/C

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Electrostatic and Capacitance
If three 10 uF capacitors are connected in parallel, the net cararitance is

30 uF
15 uF
20 uF
40 uF

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Electrostatic and Capacitance
Air capacitors are generally available in the range

1 to 20 pF
10 to 400 pF
100 to 500 pF
200 to 300 pF

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Electrostatic and Capacitance
To prevent the generation of static charges on rubber or flat leather

Surface is moistened
Conductive dressing is done
Talcum powder is sprayed on the surface
Oil compound dressing is done

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Electrostatic and Capacitance
A 330 pF capacitor and a 220 pF capacitor are each connected across a 6 V dc source. The voltage across the 330 pF capacitor is

0 V
4 V
6 V
3 V

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MORE MCQ ON Electrostatic and Capacitance

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