Quiznetik

Electronic Devices and Circuits | Set 4

1. Superposition theorem is based on

A. reciprocity

B. duality

C. non-linearity

D. linearity

Correct : D. linearity

2. The Norton current is sometimes called the

A. shorted-load current

B. open-load current

C. thevenin current

D. thevenin voltage

Correct : A. shorted-load current

3. Kirchhoff s current law states that

A. net current flow at the junction is positive

B. hebraic sum of the currents meeting at the junction is zero

C. no current can leave the junction without some current entering it.

D. total sum of currents meeting at the junction is zero

Correct : B. hebraic sum of the currents meeting at the junction is zero

4. According to Kirchhoffs voltage law, the algebraic sum of all IR drops and e.m.fs. in any closed loop of a network is always

A. negative

B. positive

C. determined by battery e.m.fs.

D. zero

Correct : D. zero

5. Kirchhoffs current law is applicable to only

A. junction in a network

B. closed loops in a network

C. electric circuits

D. electronic circuits

Correct : A. junction in a network

6. Kirchhoffs voltage law is related to

A. junction currents

B. battery e.m.fs.

C. ir drops

D. both (b) and (c)

Correct : D. both (b) and (c)

7. Thevenin resistance Rth is found

A. by removing voltage sources along with their internal resistances

B. by short- circuiting the given two terminals

C. between any two \open\ terminals

D. between same open terminals as for etk

Correct : D. between same open terminals as for etk

8. An ideal voltage source should have

A. large value of e.m.f.

B. small value of e.m.f.

C. zero source resistance

D. infinite source resistance

Correct : C. zero source resistance