### Electrical Circuits

**1. **"Any resistance R in a branch of a network in which a current I is flowing can be replaced by a voltage equal to IR". This states

- Compensation theorem
- Reciprocity theorem
- Millman's theorem
- Superposition theorem

Correct answer: (A)

Compensation theorem

**2. **A 0.09 microfarad capacitor is charged to 220 volts. How long in milliseconds will it discharged resistor has a resistance of 20,000 ohms?

- 1.5
- 2.5
- 1.25
- 0.5

**3. **A 5 μF capacitor charge to 5V has a stored charge equal to

- 1 μc
- 5 μc
- 25 μC
- 200 μc

**4. **A capacitance of 0.05 μF equals

- 0.05 x 10
^{6} F
- 0.05 x 10
^{-12} F
- 0.05 x 10
^{-12} F
- 0.05 x 10
^{12} F

Correct answer: (B)

0.05 x 10^{-12} F

**5. **A capacitance of 6 μμF means

- 6 pF
- 6 nF
- 6 fF
- 6 aF

**6. **A capacitive load always has a __________ power facto

- Leading
- Lagging
- Zero
- Unity

Correct answer: (A)

Leading

**7. **A capacitor consists of two

- Conductors only
- Dielectric only
- Conductors separated by a dielectric
- Dielectric separated by a conductor

Correct answer: (C)

Conductors separated by a dielectric

**8. **A capacitor is basically constructed of

- Two conductors separated by a dielectric
- Two dielectric separated by a conductor
- Conductors and dielectric
- Conductors and semiconductors

Correct answer: (A)

Two conductors separated by a dielectric

**9. **A capacitor is used to

- Block dc current
- Pass dc current
- Open voltage source
- Short the voltage source

Correct answer: (A)

Block dc current

**10. **A capacitor of 0.5 μF charged to 220 V is connected across an uncharged 0.5 μF capacitor. What is the voltage across each capacitor?

- 220 V
- 150 V
- 110 V
- 22 V