**Q1. What is the other name of relative permittivity?**

A. Dielectric strength

B. Potential gradient

C. Breakdown voltage

**D. Specific inductance capacity**

**Q2. In a series RLC circuit**

**A. The current lags VL by 90˚**

B. The current leads VL by 90˚

C. XL leads Xc by 90˚

D. Z = jXL at resonance

**Q3. Resistor with colored bands in the body**

A. Wire-wound resistor

**B. Carbon-composition resistor**

C. Potentiometer

D. Rheostat

**Q4. In a resonant circuit, if Q ≤ 10 resonant frequency bandwidth.**

**A. Bisects**

B. Exceeds

C. Is less than

D. Is equal to

**Q5. Which of the following conditions is not true for a series RLC circuit at resonance?**

**A. Z = jXL**

B. XL = XC

C. The power factor is one

D. The magnitude of Z is ƒR2 + (XL — XC)2

**Q6. The current is times the maximum current at half-power points of a resonance curve.**

**A. 0.707**

B. 1.414

C. 0.5

D. 0.632

**Q7. A gang capacitor is a variable capacitor in which capacitance is varied by changing the**

A. Dielectric

B. Number of plates

**C. Plate area**

D. Distance between plates

**Q8. In an ac circuit with inductive reactance, the**

A. Phase angle of the circuit is always 45˚

B. Voltage across the inductance must be 90˚ out-of-phase with the applied voltage

**C. Current through the inductance lags its induced voltage by 90˚**

D. Current through the inductance and voltage across it are180˚ out-of-phase

**Q9. If three 9 mH inductors are connected in parallel without mutual inductance then the total inductance is**

**A. 3 mH**

B. 9 mH

C. 27 mH

D. 18 mH

**Q10. What is the specific resistance of a pure germanium?**

**A. 55 fi-cm**

B. 55 fi-m

C. 55 fi-mm

D. 55 kfi-m