Capacitors and Capacitance – Exercise – 1

11. A capacitor of 0.02 μF is larger than ________.

(a)   0.000020 F
(b)   200,000 pF
(c)   2,000 pF
(d)   all of the above

Answer
Answer : (c)
Explanation
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12. A 10 μF, 20 μF, 22 μF, and 100 μF capacitor are in parallel. The total capacitance is ________.

(a)   2.43 μF
(b)   4.86 μF
(c)   100 μF
(d)   152 μF

Answer
Answer : (d)
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13. What is the capacitance when Q = 60 μC and V = 12 V?

(a)   720 μF
(b)   5 μF
(c)   50 μF
(d)   12 μF

Answer
Answer : (b)
Explanation
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14. A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased ________.

(a)   VR > VC
(b)   VC > VR
(c)   VR = VC
(d)   VR and VC = 0

Answer
Answer : (a)
Explanation
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15. Of the following capacitors, which one has the highest dielectric constant?

(a)   air
(b)   mica
(c)   glass
(d)   paper

Answer
Answer : (c)
Explanation
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