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. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] C [/accordion-item][/accordion]
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. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] D [/accordion-item][/accordion]
3. An element which supplies electric energy to the circuit is called
(a) active element.
(b) passive element.
(c) bilateral element.
(d) source element. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] A [/accordion-item][/accordion]
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. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] B [/accordion-item][/accordion]
5. Series resonant circuit is sometimes known as
(a) rejector circuit.
(b) acceptor circuit.
(c) inductive circuit.
(d) capacitive circuit. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] B [/accordion-item][/accordion]
6. Parallel resonant circuit is sometimes known as
(a) rejector circuit.
(b) acceptor circuit.
(c) inductive circuit.
(d) capacitive circuit. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] A [/accordion-item][/accordion]
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. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] A [/accordion-item][/accordion]
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. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] B [/accordion-item][/accordion]
9. The quality factor of R-L-C circuit will increase if
(a) R decreases.
(b) R increases.
(c) voltage increases.
(d) current decrease. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] A [/accordion-item][/accordion]
10. The internal conductance of ideal voltage source is
(a) infinite.
(b) zero.
(c) equal to internal resistance.
(d) equal to external collector. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] A [/accordion-item][/accordion]
11. Voltage resonance means
(a) series resonance.
(b) parallel resonance.
(c) series parallel resonance.
(d) none of these. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] A [/accordion-item][/accordion]
12. At parallel resonance, the current flowing through L and C are
(a) infinite.
(b) zero.
(c) equal.
(d) unequal. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] C [/accordion-item][/accordion]
13. Capacitor opposes change in
(a) current.
(b) voltage.
(c) voltage and current.
(d) neither voltage or current. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] B [/accordion-item][/accordion]
14. Inductor opposes change in
(a) current.
(b) voltage.
(c) voltage and current.
(d) neither voltage or current. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] A [/accordion-item][/accordion]
15. An ideal voltage source has
(a) infinite internal resistance.
(b) zero internal resistance.
(c) infinite current.
(d) zero current. [accordion clicktoclose=true tag=h4][accordion-item title=”Answer” state=closed] B [/accordion-item][/accordion]