** 1. Which of the following theorem is used for the analysis of a transistor circuit**

**(a)** Thevenin’s theorem.

**(b)** Superposition theorem.

**(c)** Norton’s theorem.

**(d)** Reciprocity.

#### **Answe****r**

** 2. The most elementary form of a loop which cannot be further divided into other loops is called**

**(a)** node.

**(b)** branch.

**(c)** loop.

**(d)** mesh.

#### **Answe****r**

** 3. An element which supplies electric energy to the circuit is called**

**(a)** active element.

**(b)** passive element.

**(c)** bilateral element.

**(d)** source element.

#### **Answer**

** 4. In a series R-L-C circuit at resonance**

**(a)** imepedance is maximum.

**(b)** admittance is maximum.

**(c)** impedance is purely reactive.

**(d)** current is minimum.

#### **Answer**

** 5. Series resonant circuit is sometimes known as**

**(a)** rejector circuit.

**(b)** acceptor circuit.

**(c)** inductive circuit.

**(d)** capacitive circuit.

#### **Answer**

** 6. Parallel resonant circuit is sometimes known as**

**(a)** rejector circuit.

**(b)** acceptor circuit.

**(c)** inductive circuit.

**(d)** capacitive circuit.

#### **Answer**

** 7. A term used to express the amount of electric energy stored in electrostatic field is**

**(a)** joules.

**(b)** watts.

**(c)** electron-volts.

**(d)** coulombs.

#### **Answer**

** 8. A series-resonant circuit implies**

**(a)** zero pf and maximum current.

**(b)** unity pf and maximum current.

**(c)** zero pf and minimum current.

**(d)** unity pf and minimum current.

#### **Answer**

** 9. The quality factor of R-L-C circuit will increase if**

**(a)** R decreases.

**(b)** R increases.

**(c)** voltage increases.

**(d)** current decrease.

#### **Answer**

** 10. The internal conductance of ideal voltage source is**

**(a)** infinite.

**(b)** zero.

**(c)** equal to internal resistance.

**(d)** equal to external collector.

#### **Answer**

** 11. Voltage resonance means**

**(a)** series resonance.

**(b)** parallel resonance.

**(c)** series parallel resonance.

**(d)** none of these.

#### **Answer**

** 12. At parallel resonance, the current flowing through L and C are**

**(a)** infinite.

**(b)** zero.

**(c)** equal.

**(d)** unequal.

#### **Answe****r**

** 13. Capacitor opposes change in**

**(a)** current.

**(b)** voltage.

**(c)** voltage and current.

**(d)** neither voltage or current.

#### **Answer**

** 14. Inductor opposes change in**

**(a)** current.

**(b)** voltage.

**(c)** voltage and current.

**(d)** neither voltage or current.

#### **Answer**

** 15. An ideal voltage source has**

**(a)** infinite internal resistance.

**(b)** zero internal resistance.

**(c)** infinite current.

**(d)** zero current.