Electric Circuits Objective Questions – Set 16

A current of 4 A flows in an AC circuit when 100 V DC is applied to it whereas it takes 250 V AC to produce the same current the power factor of the circuit is

Whenever current is supplied by a source its terminal voltage

A particular current is made up of two component : a 10 A and a sine wave of peak value 14.14 A. The average value of current is

A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The voltage drop across L is

Kirchhoffs second law is based on law of conservation of

A branch of a network is said to be passive when it contains

If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit increase if frequency of voltage source increases?

A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The voltage drop across R is

A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The current in R is

1 F is theoretically equal to

If all the elements in a particular network are linear, then the superposition theorem would hold, when the excitation is

The internal resistance of a practical voltage source is considered to be connected in

The switch S is the circuit shown in figure is ideal. If the switch is repeatedly closed for 1 ms and opened for 1 ms, the average value of i(t) is

An RLC series circuit resonates at a frequency ωr. The ratio of ( ωr L) / R is 10. The variable frequency voltage applied to the circuit is 20 sin(ωt + π/ 3). The voltage measured across the capacitance

Which of the following can not be connected in series unless they are identical?

The voltage across R and L in a series RL circuit are found to be 200 V and 150 V respectively. The rms value of the voltage across the series combination is __________________ V.

A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The phase angle of current in respect of supply voltage will be

If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit decrease if frequency of voltage source increases?

If a resistor and a capacitor are connected to form series R - C circuit across a voltage source. If frequency of voltage source increases

The linear circuit element is

Power dissipation in ideal inductor is

Magnetic flux has the unit of

Which of the following characteristics is attributed to an ideal independent voltage source?

The energy required to charge a 10 µF capacitor to 100 V is

A branch of a network is said to be active when it consists of one

The resistivity of the conductor depends on

In the circuit given below the value of resistance R_eq is

In balanced bridge, if the positions of detector and source are interchanged, the bridge will still remain balanced. This can be explained from which theoem

Which of the following is not a bilateral?

Dependent source of current and voltage are those which have