capacitors electronics question and answers -Page 9

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Capacitors problems

1. A capacitor stores electric energy in the form of an electric field.
Options
A. True
B. False

Correct Answer: True

2. A capacitor can be fully charged in 4 time constants.
Options
A. True
B. False

Correct Answer: False

3. The opposition to ac from a capacitor is called reluctance.
Options
A. True
B. False

Correct Answer: False

4. Capacitors in parallel have a higher total value than any individual capacitor.
Options
A. True
B. False

Correct Answer: True

5. In a series capacitive circuit the smallest capacitor will have the largest voltage drop across it.
Options
A. True
B. False

Correct Answer: True

6. The impedance of an RC series circuit is (R² +C²)^1/2.
Options
A. True
B. False

Correct Answer: False

7. The true power in an RC series circuit is P_R = I² x R.
Options
A. True
B. False

Correct Answer: True

8. The unit of capacitance is a farad; one farad stores one coulomb of charge or 6.24 x 10¹⁸ electrons.
Options
A. True
B. False

Correct Answer: True

9. The phase angle of an RC series circuit is = invtan (X_C/R) = invtan (V_C/V_R).
Options
A. True
B. False

Correct Answer: True

10. An ohmmeter can be used to test a capacitor.
Options
A. True
B. False

Correct Answer: True

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