FET and FET Amplifiers MCQs

A 24 V, 600 mW, Zener diode is to be used in for providing a 24V stabilized supply to a variable load. Assuming for a proper Zener action, a minimum of 10mA must flow through the zener. If the input voltage is 32V, what would be the value of R and maximum load current?

The threshold voltage of an n-channel MOSFET can be increased by

The MOSFET switch in its on-state may be considered equivalent to

A properly biased JFET will act as a

If a = 0.98, 'Co = 6 ittA and 10 = 100 IAA for a transistor, then the value of lc will be

An n-channel JFET having a pinch-off voltage (Vi) of ?5V shows a transconductance (gm) of 1 mA/V, when the applied gate-source voltage (VGs) is ?3V. Its maximum transconductance (inmA/V) will be

The mobility of an electron in a conductor is expressed in terms of

As the teperature is increased, the voltage across a diod carrying a diode carrying a constant current

A CE amplifier has a resistor RF connected between collector and base RF = 40 k. Rc = 4 k. Given hr e = 50, = 1 k, the output resistance Rod is given by