The transconductance (g_m) of a MOSFET in saturation is given by:
Q.63Medium
A photodiode is operated in photovoltaic mode when:
Q.64Medium
In an optocoupler (photocoupler), the coupling efficiency depends on:
Q.65Hard
The thermal runaway condition in a BJT occurs because:
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Q.66Easy
A JFET is depletion-type because:
Q.67Medium
In a MESFET (Metal-Semiconductor FET), compared to MOSFET:
Q.68Hard
The charge storage time in a BJT switch is primarily due to:
Q.69Medium
A varactor diode is used in frequency modulation circuits because:
Q.70Hard
In a PIN diode used as an RF switch, the operating principle is based on:
Q.71Hard
The noise figure of an amplifier is defined as:
Q.72Medium
For an IMPATT diode oscillator, the 'IMPATT' stands for:
Q.73Hard
The substrate effect in a MOSFET causes:
Q.74Medium
A CMOS inverter has asymmetric rise and fall times primarily because:
Q.75Medium
The output impedance of a BJT common-collector amplifier is approximately:
Q.76Easy
In a silicon BJT at room temperature, for every 10°C increase in temperature, the leakage current I_CO approximately:
Q.77Easy
A clamping diode in logic circuits is used to:
Q.78Hard
The frequency response of a BJT amplifier is limited at high frequencies primarily by:
Q.79Easy
A Zener diode is operating in reverse breakdown with a current of 50 mA. If the Zener resistance is 5 Ω and Zener voltage is 12 V, what is the terminal voltage?
Q.80Medium
Which of the following statements about Schottky diodes is incorrect?
