Explore topic-wise MCQs in Engineering.

An emitter-follower has ________ impedance at the input and ________ impedance at the output.

Ideally, the changes in the load resistor or the source resistor should have ________ effect on all the parameters of the two-port model.

The ac voltage gain of a Darlington connection is about ________.

One junction of an operating transistor is ________ and the other one is ________.

The ________ the level of R_L, the ________ the level of ac voltage gain.

The coupling capacitor places the load and collector resistors in a ________ arrangement.

A common-base configuration has ________ impedance at the input and ________ impedance at the output.

The ________ the source resistance, the ________ the overall gain of an amplifier.

In a common-base configuration, the input and output voltages are ________ and the output and input currents are ________.

The ________ of the input signal is one of the first concerns in the sinusoidal ac analysis of transistor networks.

The input and output signals are ________ for the typical transistor amplifier at frequencies that permit ignoring the effects of the reactive elements.

The output voltage and the input voltage are ________ for the common-emitter configuration.

For R₂ smaller than ________ k the voltage V_D is equal to V_DD = 16 V.

In a depletion-type MOSFET, the transfer characteristic rises ________ as V_GS becomes more positive.

In a JFET, the level of ________ is limited to values between 0 V and V_P.

The bypass capacitor in a common-emitter configuration ________ the voltage gain.

The loaded voltage gain of an amplifier is ________ the no-load level.

The common-emitter configuration has a ________ level of input impedance with a ________ voltage and current gain.

A ________ power amplifier is limited to use at one fixed frequency.

A class A amplifier dissipates ________ power when the load is drawing maximum power from the circuit.

The main feature(s) of a large-signal amplifier is (are) the ________.

The ________ has the hottest temperature in a power transistor.

A class A amplifier conducts 180 of the cycle.

AC current ratios _ac and _ac convert directly from h parameters.

Besides the fact that _DC = I_C/I_B and _ac = I_C/I_B, these quantities are always the same for purposes of small-signal amplification.

In a fixed-bias network, the input signal V_i is applied to the ________ of the transistor while the output V_o is off the ________.

r^'_e is temperature dependent.

A common-collector amplifier has high input impedance, good current gain, and a voltage gain of 1.

The total voltage gain of a multistage amplifier is the product of the individual stage gains.

In a class A transformer-coupled power amplifier, ________ winding resistance of the transformer determine(s) the dc load line for the circuit.

A form of class A amplifier having maximum efficiency of ________ uses a transformer to couple the output signal to the load.

The feedback pair uses a(n) ________ transistor driving a(n) ________ transistor, the two devices acting effectively much like one pnp transistor.

The ratio of current I_D to I_DSS is equal to ________ for a fixed-bias configuration.

Class A amplifiers operate in the active region of the load line all of the time.

The efficiency of any amplifier is the ratio of signal output power to signal input power.

In class B power amplifiers, the output signal varies for ________ of the cycle.

________ amplifiers have the highest overall efficiency.

Power amplifiers primarily provide sufficient power to an output load, typically from ________ to ________.

The ________ region is the region normally employed for linear (undistorted) amplifiers.

In the cutoff region the collector-base junction is ________-biased and the base-emitter junction is ________-biased for a transistor.

The input to an op-amp can be a(n) ________.

The level of the output voltage of an op-amp circuit is always ________ the level of V_CC.

A filter that passes signals that are above one ideal cutoff frequency and below a second cutoff frequency is called ________.

________ build a multistage connection.

A low-pass filter ________.

A bandpass filter uses ________ circuit.

A voltage summing amplifier has ________.

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

In a dc millivoltmeter, the amplifier provides a meter with ________ input impedance and a scale factor dependent on ________ value and accuracy.

A(n) ________ is not a component of a passive filter.