Explore topic-wise MCQs in Engineering.

If a noninverting amplifier has an R_IN of 1000 ohms and an R_FB of 2.5 kilohms, what is the R_IN voltage when 1.42 mV is applied to the correct input?

If ground is applied to the (+) terminal of an inverting op-amp, the ( ) terminal will:

With a differential gain of 50,000 and a common-mode gain of 2, what is the common-mode rejection ratio?

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

What three subcircuits does a phase locked loop (PLL) consist of?

An astable multivibrator is also known as a:

A circuit whose output is proportional to the difference between the input signals is considered to be which type of amplifier?

With negative feedback, the returning signal

What is the output waveform?

The closed-loop voltage gain of an inverting amplifier equals:

What is the cutoff frequency of this low-pass filter?

With negative feedback, the returning signal:

What starts a free-running multivibrator?

A portion of the output that provides circuit stabilization is considered to be:

Which of the following cannot actually move?

What electrical characteristic of intrinsic semiconductor material is controlled by the addition of impurities?

In "p" type material, minority carriers would be:

What can a semiconductor sense?

When an electron jumps from the valence shell to the conduction band, it leaves a gap. What is this gap called?

Silicon atoms combine into an orderly pattern called a:

In "n" type material, majority carriers would be:

Minority carriers are many times activated by:

Which semiconductor material is made from coal ash?

Elements with 1, 2, or 3 valence electrons usually make excellent:

Which material may also be considered a semiconductor element?

What is the voltage across R1 if the P-N junction is made of silicon?

If conductance increases as temperature increases, this is known as a:

Solid state devices were first manufactured during:

Electron pair bonding occurs when atoms:

How many valence electrons are in every semiconductor material?

What is a type of doping material?

When and who discovered that more than one transistor could be constructed on a single piece of semiconductor material:

A P-N junction mimics a closed switch when it:

What is this circuit?

A noninverting closed-loop op-amp circuit generally has a gain factor:

In order for an output to swing above and below a zero reference, the op-amp circuit requires:

Op-amps used as high- and low-pass filter circuits employ which configuration?

The major difference between ground and virtual ground is that virtual ground is only a:

The ratio between differential gain and common-mode gain is called:

What is the frequency of this 555 astable multivibrator?

If the gain of a closed-loop inverting amplifier is 3.9, with an input resistor value of 1.6 kilohms, what value of feedback resistor is necessary?

A circuit that uses an amplifier with passive filter elements is called a(n):

The input offset current equals the

The voltage follower has a:

What is the output waveform of the circuit?

What is the current through the LED?

The characteristic curve for the complex model of a silicon diode shows that

A differential amplifier has a common-mode gain of 0.2 and a common-mode rejection ratio of 3250. What would the output voltage be if the single-ended input voltage was 7 mV rms?

The magnitude of closed-loop voltage gain (A_cl) of an inverting amplifier equals:

What is the current through the diode?