Electronics and Communication Engineering - Electronic Devices and Circuits
Exercise : Electronic Devices and Circuits - Section 9
- 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.
Assertion (A): If A = 0.5 ∠ 20°, A2 = 0.25 ∠ 40°.
Reason (R): When drawing a phasor diagram, sinusoids may have the same or different frequencies.
Answer: Option
Explanation:
In a phasor diagram all phasors must be of the same frequency.
12.
Two passive elements are connected in series and a dc voltage is applied to the circuit. The time variation of the current is shown in figure. The two elements are


Answer: Option
Explanation:
In an RL circuit excited from dc source the current rises exponentially with a time constant
13.
Which statement is incorrect for parallel resonance?
Answer: Option
Explanation:
At parallel resonance Z is maximum and Y is minimum.
14.
If a capacitor is charged by a square wave current source the voltage across the capacitor is
Answer: Option
Explanation:
Capacitor will behave as integrator.
15.
The equivalent resistance between terminals x and y figure is


Answer: Option
Explanation:
Use star-delta conversion.
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