PHY301 Final Term Past Paper 2006

FINALTERM EXAMINATION

SPRING 2006 PHY301 - CIRCUIT THEORY (Session - 1 ) Marks: 60 Time: 120min

Student Name:

Center Name/Code:

Exam Date: Saturday, August 19, 2006

Instructions

All questions are compulsory.

븀 This exam consists of One Multiple Choice Questions (MCQ's) ,which carries 10 Marks and four descriptive questions.

븀 While attempting descriptive question do not miss any step so that you could get better marks.

븀 Do not ask about the contents of any question of this examination from anyone.

븀 This examination is closed book, closed notes and closed neighbors.

븀 Do not ask any question about the contents of this examination from anyone.

븀 Draw Circuit diagrams (where necessary) for each step to get maximum score in the exam.

Question

Question Marks

Q1. Superposition theorem can be applied only to circuit having …….. (1 marks)

elements. Non-linear

Passive

Linear bilateral

Resistive

Q2. The output of a half wave rectifier is suitable only (1 marks)

for .......... Running car diodes

Charging batteries Diode rating

Purity of power output

Q3. While calculating Rth current sources in the circuit are (1 marks)

Replaced by opens Replaced indirect voltage

Replaced by short

Replaced DC voltage

Q4. In parallel circuits all components (1 marks)

must

have the same value have same potential difference carry the same current be switched ON & OFF simultaneously

Q5. The clipping level is primarily determined by (1 marks)

shape of the input waveform value of the resistor

battery voltage knee voltage of the diode

Q6. The depletion region of a P-N junction is (1 marks)

formed

During the manufacturing

When forward bias is applied to it

Under reverse bias

When its temperature is reduced

Q7. The dc load line of a transistor can be drawn if we know its cut off and ……. points (1 marks)

active