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QJEE MAIN 2021
If $V_A$ and $V_B$ are the input voltages (either 5 V or 0 V ) and $V_0$ is the output voltage then the two gates...
JEE MainPhysicsHard
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QJEE MAIN 2021
Choose the correct waveform that can represent the voltage across R of the following circuit, assuming the diode is ideal one
JEE MainPhysicsEasy
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QJEE-MAIN 2021
A zener diode of power rating 2W is to be used as a voltage regulator. If the zener diode has a breakdown of 10 V...
JEE MainPhysicsEasy
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QJEE-MAIN 2021
For a transistor $\alpha$ and $\beta$ are given as $\alpha=\frac{I_c}{I_E}$ and $\beta=\frac{I_c}{I_B}$. Then the correct relation between $\alpha$ and $\beta$ will be
JEE MainPhysicsEasy
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QJEE MAIN 2021
In the following logic circuit the sequence of the inputs A, B are (0, 0), (0, 1), (1, 0) and (1, 1). The output Y...
JEE MainPhysicsEasy
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QJEE MAIN 2019
The reverse breakdown voltage of a Zener diode is 5.6 V in the given circuit
JEE MainPhysicsEasy
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QJEE MAIN 2021
Statement-I : By doping silicon semiconductor with pentavalent material, the electrons density increases. Statement-II : The n-type semiconductor has net negative charge. In...
JEE MainPhysicsEasy
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QJEE-MAIN 2021
Four NOR gates are connected as shown in figure. The truth table for the given figure is :
JEE MainPhysicsEasy
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QJEE MAIN 2021
Identify the logic operation carried out by the given circuit
JEE MainPhysicsEasy
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QJEE MAIN 2021
In a semiconductor, the number density of intrinsic charge carriers at $27^{\circ} \mathrm{C}$ is $1.5 \times 10^{16} / \mathrm{m}^3$. If the semiconductor is doped with...
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