Explore topic-wise MCQs in Engineering.

________ in a current-controlled voltage source circuit.

When a number of stages are connected in series, the overall gain is the ________ of the individual stage gains.

An active circuit is composed of a(n) ________.

The output impedance of a voltage buffer is ________.

In a current-controlled voltage source using the inverting op-amp circuit, the controlled output current is ________ with the input voltage source.

Op-amps can be used to form ________ circuit(s).

The roll-off for a first-order high-pass filter is ________.

When checking a transistor by ohmmeter, a relatively ________ resistance is displayed for a forward-biased junction and ________ resistance for a reverse-biased junction.

One p-n junction of a transistor is ________-biased and the other one is ________-biased in the active region.

There is(are) ________ in the internal construction of a TO-92 package.

________ is (are) the most widely used material(s) for solar cells.

The negative-resistance region of tunnel diodes can be used in the design of ________.

LCDs have ________ power requirement than (as) LEDs.

The wavelength is usually measured in ________.

The normal range of reverse-bias voltage V_R for varactor diodes is limited to about ________.

The barrier at the junction for a Schottky diode is ________ that of the p-n junction device in both the forward- and reverse-bias regions.

The majority of power diodes are constructed using silicon because of its higher ________ rating(s).

In varactor diodes, as the reverse-bias potential increases, the width of the depletion region ________, which in turn ________ the transition capacitance.

Ge has a ________ dark current and a ________ level of reverse current than silicon.

In both n-type and p-type silicon materials, the ________ is the majority carrier in a Schottky diode.

A decrease in illumination ________ the resistance R of a photoconductive cell.

In the reverse-bias region of varactor diodes, the resistance R_R in parallel with the varying capacitor is ________ and the series resistance R_S is ________.

Schottky diode construction results in a ________ uniform junction region and a ________ level of ruggedness.

The active region of a transistor is bounded by the ________.

All amplifiers should have at least ________ terminals with ________ terminal(s) controlling the flow between ________ other terminal(s).

Varactor diodes are ________.

LCDs are characteristically ________ LEDs.

The PIV of Schottky diodes is usually ________ that of a comparable p-n junction unit.

The current capability of power diodes can be increased by placing two or more of the diodes in ________, and the PIV rating can be increased by stacking the diodes in ________.

In the negative-resistance region of tunnel diodes, as the terminal voltage increases, the diode current ________.

Typical levels of efficiency for solar cells range from ________ to ________.

The "on" and "off" characteristics refer to ________ limits while the small-signal characteristics indicate the parameters of importance to ________ operation.

The lower doping level ________ the conductivity and ________ the resistivity of the material.

The output voltage of a voltage buffer is ________ with the input voltage.

Op-amp circuits are used in ________ voltmeters.

Which of the following require(s) interfacing circuitry?

For transistor transistor logic (TTL) circuits, ________ is a mark and ________ is a space.

In the operation of two 311 voltage comparators as the voltage window detector, a high output indicates that the input is ________.

In the frequency-shift keyed (FSK) signal decoder, the RC ladder filter is used to ________.

For the RS-232C circuit, ________ is a mark and ________ is a space.

An input at a frequency of 1070 Hz will drive the decoder output voltage to ________.

The conversion resolution of an 8-stage counter operating an 8-stage ladder network using a reference voltage of 5 V is ________.

In the operation of two 311 voltage comparators as the voltage window detector, a low output indicates that the input is ________.

The free-running frequency of a 565 FSK decoder is adjusted with ________.

In a ladder-network conversion, ________ ladder stages provide ________ voltage resolution.

In a ladder-network conversion, the ________ circuit provides a signal to stop the counter when the staircase voltage rises above the input voltage.

A phase-locked loop (PLL) is an electronic circuit that consists of ________.

Time periods for monostable operation of the 555 timer can range from ________ to ________, making this IC useful for a range of applications.

A voltage-controlled oscillator (VCO) is a circuit that provides a ________ output signal.

When the input to the 311 voltage comparator is ________ value, the output is ________ if the inverting input is connected to ground.