Explore topic-wise MCQs in Engineering.

The circuit in the given circuit is a low-pass filter.

When the resistance is greater than the capacitive reactance in a series RC circuit, the phase angle is ___.

The true power in the given circuit equals ___.

The hypotenuse of the right triangle of a vector diagram for R and X_C is _______________.

The ___ cannot change instantaneously in an inductor.

The inductance value of L₃ in the given figure is _____ if the total inductance is 340 mH.

When current flow tries to decrease in an inductor, the magnetic field _______________ and the voltage polarity across the inductor _______________.

Electromagnetic induction is the generation of _________ from __________.

Inductive ___ represents the opposition to an alternating current.

The opposition to ac by an inductor is directly proportional to ___.

An RL integrator can act as a __________ filter and an RC differentiator can act as a __________ filter.

Inductance is proportional to the cross-sectional area of a coil.

A step-up transformer will have a turns ratio greater than 1.

The secondary current in a transformer depends on the secondary voltage and load resistance values.

Kirchhoff's voltage law does not apply to series RL circuits.

Magnetic force is the force that produces a magnetic field.

A magnet consisting of a coil of wire wound around a soft iron or steel core is called an electromagnet.

The output of the secondary winding is 15 V.

For inductions in series, L_T = L₁ + L₂ + L₃ +...

The total inductance in the given circuit is 0.6 mH.

Inductors connected in series will increase the total inductance value.

Inductors are not as versatile as capacitors.

An ac generator will produce a constant waveform.

Faraday's law states that the polarity of induced voltage in a coil is in opposition to the current change through that coil.

The current through an inductor in a parallel RL circuit leads the current through the resistor.

___ is the concept of one coil inducing a voltage into another coil.

A(n) _____ transformer is usually used for audio or power applications.

If the impedance equals 2 k in a parallel RC circuit, the admittance equals ___.

A(n) ___ is sometimes constructed as a variable transformer.

After a voltage has been applied to an inductor, the current will be ___ of its full value after 2 time constants.

The ___ of a coil is the inherent resistance of the wire.

___ power represents the energy dissipated at a given point in time.

After the first time constant, a transient current has changed by _______________ %, leaving _______________ % remaining.

The primary winding of a transformer is the side connected to the load.

The time constant of an inductive circuit is dependent on the circuit's resistance.

The amount of dc current that an inductor will allow to pass depends on the circuit's total resistance that is in series with it.

An inductor will boost current flow.

An air-core inductor has a metal core.

The secondary current is _____ in the given circuit.

To ensure a high coefficient of coupling, all fixed transformers are usually wound on a(n) _____________.

Making the load resistance appear the same as the source's internal resistance is called _____.

A transformer turns ratio of ________ will be needed to match an output impedance of 5 k to an 8 speaker.

If voltage is stepped-up to the secondary, current will be stepped-down by the same amount.

In the given circuit, the secondary voltage is in phase with the primary voltage.

The reflected load value that the source sees will always be larger than the load value itself.

The C-B configuration is used to provide which type of gain?

In a C-E configuration, an emitter resistor is used for:

Often a common-collector will be the last stage before the load; the main function(s) of this stage is to:

For a C-C configuration to operate properly, the collector-base junction should be reverse biased, while forward bias should be applied to which junction?

The input/output relationship of the common-collector and common-base amplifiers is: