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# Assignment 1(Fall 2010)

CIRCUIT THEORY (PHY301)

MARKS: 30

Due Date: November 02, 2010

DON’T MISS THESE Important instructions:

·          To solve this assignment, you should have good command over first 6 lectures.

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·          This is not a group assignment, it is an individual assignment so be careful and avoid copying others’ work. If some assignment is found to be copy of some other, both will be awarded zero marks. It also suggests you to keep your assignment safe from others. No excuse will be accepted by anyone if found to be copying or letting others copy.

·          Don’t wait for the last date to submit your assignment.

·          You can draw circuit diagrams in “Paint” or in “Corel Draw”. The simple and easy way is to copy the given image in Paint and do the required changes in it.

### Q.1

Find the equivalent resistance of given circuit. Write each step of the calculation to get maximum marks. Draw the circuit diagram of each step otherwise you will lose your marks.

Q.2

For the given circuit below, find the current I1, I2, I3 and voltage VX

Q.3

Given below is a simple circuit containing a bulb (lamp), battery and two switches.

Describe the current flow in the circuit and Bulb (glow or not) for each given condition

1. When switch 1 and switch 2 both are not connected.
2. When switch 1 is connected and switch 2 is not connected.
3. When both switches are connected.

see the attached file for complete assignmnet/

…………………………………………………..

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### Replies to This Discussion

plz koi to help kary
Q1 = Equivalent Resistance = 6.78

Q2=i1=3a,i2=2a,i3=6a,Vx=30V
Q3=only in 2nd condition bulb will glow...
please tell me which formula to use for question # 2 please
Brother , Kindly , can u send me the method to solve these circuit...plz
Brother tell me question q2 formula. Thanks a lot...
Kindly give solution of Q2.
Thanks

i1=3a
i2=2a
i3=i1+i2=5a
vx=55v

challenge it if it is wrong.
Jab last date guzar gai tab solution de rahe hain.
Yeh hi solution jo aaj de rahe hain, Last date se pahle diya hota to ziyada behtar tha.
Well, Thanks.

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