Electronics and Communication Engineering - Electronic Devices and Circuits
Exercise : Electronic Devices and Circuits - Section 11
- Electronic Devices and Circuits - Section 14
- Electronic Devices and Circuits - Section 27
- Electronic Devices and Circuits - Section 26
- Electronic Devices and Circuits - Section 25
- Electronic Devices and Circuits - Section 24
- Electronic Devices and Circuits - Section 23
- Electronic Devices and Circuits - Section 22
- Electronic Devices and Circuits - Section 21
- Electronic Devices and Circuits - Section 20
- Electronic Devices and Circuits - Section 19
- Electronic Devices and Circuits - Section 18
- Electronic Devices and Circuits - Section 17
- Electronic Devices and Circuits - Section 16
- Electronic Devices and Circuits - Section 15
- Electronic Devices and Circuits - Section 1
- Electronic Devices and Circuits - Section 13
- Electronic Devices and Circuits - Section 12
- Electronic Devices and Circuits - Section 11
- Electronic Devices and Circuits - Section 10
- Electronic Devices and Circuits - Section 9
- Electronic Devices and Circuits - Section 8
- Electronic Devices and Circuits - Section 7
- Electronic Devices and Circuits - Section 6
- Electronic Devices and Circuits - Section 5
- Electronic Devices and Circuits - Section 4
- Electronic Devices and Circuits - Section 3
- Electronic Devices and Circuits - Section 2
11.
An m derived low pass filter has fc = 1000 Hz and m = 0.6. This filter will have infinite attenuation at
Answer: Option
Explanation:
For m derived low pass filter 
12.
In figure, i(t) is a unit step current. The steady state value of v(t) is
Answer: Option
Explanation:
In steady state inductance is short-circuited and capacitance is open circuited. Current through 6Ω resistance = 
and 
13.
A current 10 sin (200t) A flows through a 5 mH inductance. The expression for voltage is
Answer: Option
Explanation:
Z = jXL = jωL = 
= 1∠90° and V = IXL
14.
In figure, capacitor is used to develop pulses of short duration and large duty cycle across R2 when switch is closed. Which of the following combinations is best suited?
Answer: Option
Explanation:
Large values of R1 and C mean large time of charging C and hence large duty cycle. Small value of R2 ensures that duration of pulses is small.
15.
In figure, which value of ZL will cause maximum power to be transferred to the load?
Answer: Option
Explanation:
As seen from ZL, the circuit impedance = 
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