The reactive component in an impedance parallel circuit leads the voltage when the current _________ the voltage.

What are the steps required in sequence to solve a circuit using superposition theorem? (a) Select any one source and short circuit all other voltage sources. (b) Find out the current or voltage across the required element, due to the source under consideration. (c) Open all current sources, if the internal impedance is not known. If known replace them by their impedances. (d) Add all the individual effects produced by individual sources to obtain the total current in or across the voltage element. Code :

A

(a), (c), (b), (d)

B

(a), (b), (c), (d)

C

(c), (a), (b), (d)

D

(a), (d), (c), (b)

Referring this circuit, determine the maximum output voltage when a single pulse is applied as shown. The total resistance is 60 Ω.
Time Response of Reactive Circuits mcq question image

Time Response of Reactive Circuits mcq question image

A

2.73 V

B

27.33 V

C

30 V

D

2.67 V

In an impedance parallel network, the reactive component will either lead or lag the voltage by _________ degrees.

A

0

B

90

C

45

D

180

When an electric current coil of a wattmeter is connected to the electric current path R and the voltage coil is connected between the electric current R path and the neutral side of the balanced three phase supply, it shows 10 kW. The line voltage along the phase sequence RYB is 400 V. The current drawn by the current path is 54 A. What is the new reading of the wattmeter if the voltage coil is connected between the lines B and the Y paths, even if the electric current coil is continuously present in the line R?

A

13 kW

B

0

C

-13 kW

D

20 kW

Referring to the give circuit, the output will.
Time Response of Reactive Circuits mcq question image

A

Decay to zero at the end of the pulse

B

Reach 6 V at the end of the pulse

C

Reach 3.78 V at the end of the pulse

D

Reach 5.16 V at the end of the pulse

Referring to the bellow figure, determine the voltage level that the output will reach during the pulse.
Time Response of Reactive Circuits mcq question image

A

0 V

B

15 V

C

6.3 V

D

9.45 V

In an impedance parallel network, the reactive component will ____________ the voltage by 90 degrees.

A

Lead

B

Lag

C

Either lead or lag

D

Depends on the circuit

The short circuit impedance is given by 18 ohm and the characteristic impedance is 50 ohm. Find the open circuit impedance.

A

138.8

B

188.3

C

388.1

D

838.1

Consider the following statements regarding reciprocity theorem : 1. In any passive linear bilateral network, if the single voltage source Vx, in branch x produces the current response Iy, in branch y, then the removal of the voltage source from branch x and its insertion in branch y will produce the current response iy in branch x. 2. The interchange of an ideal voltage source and an ideal ammeter in any passive, linear, bilateral circuit will not change the ammeter reading. 3. The interchange of an ideal current source and an ideal voltmeter in any passive linear bilateral circuit will change the voltmeter reading. Which of the above statements are correct ?

A

1 and 3 only

B

1 and 2 only

C

2 and 3 only

D

1, 2 and 3

In the following figure, the transmitter Tx sends a wideband modulated RF signal via a coaxial cable to the receiver Rx. The output impedance ZT of Tx, the characteristic impedance Z0 of the cable, and the input impedance ZR of Rx are all real. Which one of the following statements is TRUE about the distortion of the received signal due to impedance mismatch?

A

The signal gets distorted if Z_R ≠ Z₀, irrespective of the value of Z_T

B

The signal gets distorted if Z_T ≠ Z₀, irrespective of the value of Z_R

C

Signal distortion implies impedance mismatch at both ends: Z_T ≠ Z₀ and Z_R ≠ Z₀

D

Impedance mismatches do NOT result in signal distortion but reduce power transfer efficiency

The reactive component in an impedance parallel circuit leads the voltage when the current _________ the voltage.

Related Questions