Question Text
Question 1 :
Number of secondary electrons emitted per number of primary electrons depends on
Question 3 :
The following truth table corresponds to the logic gate
{tex} A \quad 0 \quad 0 \quad 1 \quad 1 {/tex}
{tex} B \quad 0 \quad 1 \quad 0 \quad 1 {/tex}
{tex} X \quad 0 \quad 1 \quad 1 \quad 1 {/tex}
Question 6 :
How many {tex}\mathrm{NAND}{/tex} gates are used to form an {tex}\mathrm{AND}{/tex} gate
Question 7 :
The grid voltage of any triode valve is changed from {tex} - 1 {/tex} volt to {tex} - 3 {/tex} volt and the mutual conductance is {tex} 3 \times 10 ^ { - 4 } {/tex} mho. The change in plate circuit current will be
Question 8 :
In a triode amplifier, the value of maximum gain is equal to
Question 12 :
The slope of plate characteristic of a vacuum diode is {tex} 2 \times 10 ^ { - 2 } { mA } / { V } {/tex}. The plate resistance of diode will be
Question 13 :
{tex}\mathbf {Assertion}{/tex} :A transistor is a voltage-operating device.<br>{tex}\mathbf {Reason}{/tex} :Base current is greater than the collector current.
Question 14 :
For a common base configuration of {tex} P N P {/tex} transistor {tex} \frac { l _ { C } } { l _ { E } } = 0.98 {/tex} then maximum current gain in common emitter configuration will be
Question 17 :
In forward bias, the width of potential barrier in a {tex} P {/tex}-{tex}N{/tex} junction diode
Question 19 :
The forbidden gap in the energy bands of germanium at room temperature is about
Question 20 :
A gate has the following truth table
{tex} P \quad 1 \quad 1\quad 0\quad 0 {/tex}
{tex} Q \quad 1 \quad 0\quad 1 \quad 0 {/tex}
{tex} R\quad 1\quad 0\quad 0 \quad 0{/tex}