MHT CET 2024 4th May Morning Shift | Semiconductor Devices and Logic Gates Question 48 | Physics

The collector supply voltage is 6 V and a voltage drop across a resistor of $600 \Omega$ in the collector circuit is 0.6 V , in a circuit of transistor connected in common emitter mode. If the current gain is 20 then the base current is

0.25 mA

0.05 mA

0.12 mA

0.02 mA

MHT CET 2024 4th May Morning Shift

MCQ (Single Correct Answer)

-0

A zener diode, having breakdown voltage 15 V is used in a voltage regulator circuit as shown. The current through the zener diode is

MHT CET 2024 4th May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 45 English

20 mA

5 mA

10 mA

15 mA

MHT CET 2024 4th May Morning Shift

MCQ (Single Correct Answer)

-0

A semiconductor device X is connected in series with a battery and a resistor. The current of 10 mA is found to pass through the circuit. If the terminals of X are connected in reverse manner, the current drops to almost zero. X may be

a zener diode

a p-n junction diode

an intrinsic semiconductor

an extrinsic semiconductor

MHT CET 2024 3rd May Evening Shift

MCQ (Single Correct Answer)

-0

The Boolean expression for ' $x-O R$ ' gate $C=(A \oplus B)$ is equal to

$(\mathrm{A} \cdot \mathrm{B})+(\overline{\mathrm{A}} \cdot \overline{\mathrm{B}})$

$\mathrm{A}+(\overline{\mathrm{A}} \cdot \overline{\mathrm{B}})$

$(\mathrm{A} \cdot \mathrm{B})+\overline{\mathrm{B}}$

$(\overline{\mathrm{A}} \cdot \mathrm{B})+(\mathrm{A} \cdot \overline{\mathrm{B}})$

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