Electronics and Communication Engineering - Networks Analysis and Synthesis
Exercise : Networks Analysis and Synthesis - Section 7
- Networks Analysis and Synthesis - Section 14
- Networks Analysis and Synthesis - Section 27
- Networks Analysis and Synthesis - Section 26
- Networks Analysis and Synthesis - Section 25
- Networks Analysis and Synthesis - Section 24
- Networks Analysis and Synthesis - Section 23
- Networks Analysis and Synthesis - Section 22
- Networks Analysis and Synthesis - Section 21
- Networks Analysis and Synthesis - Section 20
- Networks Analysis and Synthesis - Section 19
- Networks Analysis and Synthesis - Section 18
- Networks Analysis and Synthesis - Section 17
- Networks Analysis and Synthesis - Section 16
- Networks Analysis and Synthesis - Section 15
- Networks Analysis and Synthesis - Section 1
- Networks Analysis and Synthesis - Section 13
- Networks Analysis and Synthesis - Section 12
- Networks Analysis and Synthesis - Section 11
- Networks Analysis and Synthesis - Section 10
- Networks Analysis and Synthesis - Section 9
- Networks Analysis and Synthesis - Section 8
- Networks Analysis and Synthesis - Section 7
- Networks Analysis and Synthesis - Section 6
- Networks Analysis and Synthesis - Section 5
- Networks Analysis and Synthesis - Section 4
- Networks Analysis and Synthesis - Section 3
- Networks Analysis and Synthesis - Section 2
1.
An R-L series circuit has R = 5 Ω and L = .01 H. It is fed by ac 50 Hz supply. The rms current in the circuit is 5 A. The active power supplied by the source is
Answer: Option
Explanation:
P = I2R = 52(5) = 125 W.
2.
A particular current is made up of two components 10A dc and sinusoidal current of peak value 14.14A. The average of resultant current is
Answer: Option
Explanation:
The average of sinusoid over 1 cycle is zero.
3.
In figure, the switch is closed at t = 0. After some time i = 6A and rate of change of current was 4A/s. The value of inductor is
Answer: Option
Explanation:
Steady state current = 
A. Therefore, i = (1 - e-3t/L) = 6A and 
From these equations L = 0.5H.
4.
Assertion (A): In series R-L-C circuit, the current may lead or lag the voltage depending on the value of R.
Reason (R): Phase angle of an R-L series circuit is tan-1 (ωL/R).
Answer: Option
Explanation:
The current may lead or lag the voltage depending on values of L and C.
5.
In figure the switch has been in position 1 for a long time. At t = 0, the switch is moved to position 2. The equation for transient current is
Answer: Option
Explanation:
When switch is in position 2, time constant is 
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