Explore topic-wise MCQs in Engineering.

In the given circuit, Maximum power is being transferred to the load.

If the current drawn in the secondary of a transformer increases, the power in the primary should remain the same.

3428 is the decimal value for which of the following binary coded decimal (BCD) groupings?

Digital electronics is based on the _________ numbering system.

The weight of the LSB as a binary number is:

What is the difference between binary coding and binary coded decimal?

Convert the binary number 1001.0010 to decimal.

A decrease in base current of a C-E amplifier causes the voltage measured between the emitter and the collector to increase.

A transistor may be used as a switching device or as a:

If an input signal ranges from 20 40 A (microamps), with an output signal ranging from .5 1.5 mA (milliamps), what is the ac beta?

Voltage-divider bias provides:

To operate properly, a transistor's base-emitter junction must be forward biased with reverse bias applied to which junction?

The ends of a load line drawn on a family of curves determine:

If V_CC = +18 V, voltage-divider resistor R₁ is 4.7 k, and R₂ is 1500, what is the base bias voltage?

What is the magnitude of the phase angle of a 24 Vac parallel RL circuit when R = 45 and X_L = 1100 ?

Which is the higher gain provided by a C-E configuration?

Which of the following statements is true about a lag network?

Calculate the voltage dropped across L₂ in the given circuit.

What is the magnitude of the phase angle between the source voltage and current when a 100 mH inductor with an inductive reactance of 6 k and a 1 k resistor are in series with a source?

An open secondary winding of a transformer will cause the primary current to be nearly zero.

The secondary voltages produced by a center-tapped transformer are equal in amplitude but 180 out of phase with respect to the center tap.

Base 10 refers to which number system?

The number of bits used to store a BCD digit is:

Sample-and-hold circuits in ADCs are designed to:

When transistors are used in digital circuits they usually operate in the:

Three different Q points are shown on a dc load line. The upper Q point represents the:

A current ratio of I_C/I_E is usually less than one and is called:

With the positive probe on an NPN base, an ohmmeter reading between the other transistor terminals should be:

Calculate the voltage dropped across R₁ in the given circuit.

What is the true power of a 24 Vac parallel RL circuit when R = 45 and X_L = 1100 ?

The load resistance increases. How will the load current change?

What is the power dissipated by a 1.2 k resistor with 12 volts across it?

How many joules of energy will a 10 W lamp dissipate in one minute?

The source is 24 volts and the load resistance is 100 . What is the load current?

Resistors are identified as to wattage by:

What type of resistors have a tolerance rating of 5% or greater?

Resistor tolerance is either printed on the component, or is provided by:

The power rating of a resistor is __________ related to __________.

The ramp voltage at the output of an op-amp integrator

A two-pole high-pass active filter would have a roll-off rate of

A basic series regulator has

A comparator is an example of a(n)

A triangular-wave oscillator can consist of an op-amp comparator, followed by a(n)

In an averaging amplifier, the input resistances are

If the input to a comparator is a sine wave, the output is a

CMOS logic is probably the best all-around circuitry because of its:

A TTL totem pole circuit is designed so that the output transistors are:

The problem of interfacing IC logic families that have different supply voltages (V_CCs) can be solved by using a:

What quantities must be compatible when interfacing two different logic families?

A Karnaugh map will ____________________.