7/24/2019 CT Second Sessional

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Q1) a) Defne time constant or driven RL circuit.

b) Explain the behavior o charge on a capacitor or undriven RC circuit.

c) What is a necessity of laplace transform?

d) Find the characteristic impedance o symmetrical T net!or"!hose total series impedance is #$$ ohms and total shunt armimpedance is %$$ ohms.

e) Design a prototype lo! pass flter having cuto& re'uency is (()*+ anddesign impedance is #$$ohms.

Q2) An electric circuit consist of resistance 4 ohms in parallel with capacitor of 3F !he

circuit is e"cited by current source i#t) as input and $olta%e across capacitor is $#t) as outputFind the net response Assume ') ('&olts

Q3 esi%n a constant *+, - section hi%h pass filter to ha$e cut-off fre.uency of

/+0 and desi%n impedance of ''ohm alculate attenuation in d at fre.uency of

4/+0 and phase an%le in de%ree at fre.uency at //+0

Q4) Find 5aplace of %i$en function

f( t)=sinh at

Q/ ,ho! that the inverse laplace oF( s)= 1

( s2+a2)2 by convolution integral

is1

2a3(sinatatcos at)

.

Q- Derive the expression o voltage and current or both driven and undriven

series RL circuit during transient conditions.

SUSCET, TANGORI

B. Tech. (EE, Semester- 3rd)

Circuit Theory (BTEE-3!)

Sectio" -A

#$%imum #$r&s ' 3

Ro No. ..

Tot$ No o* +uestio"s '

Tot$ No o* $es ' !

Time' !

1

2

/our

I"structio" to C$"did$tes'

!) 6ection A iscom0usory.

1) Attempt T2o .uestions from 6ection

3 Attem t O"e uestion from 6ection ( % 1 4 !)

(1 % 4 !)Sectio" -B

(! % ! 4 !)Sectio" -C