JEE Main 2019 (Online) 10th April Evening Slot | Semiconductor Question 103 | Physics

JEE Main 2019 (Online) 10th April Evening Slot

MCQ (Single Correct Answer)

-1

The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener diode is 6 V and the load resistance is, R_L = 4k$$\Omega $$. The series resistance of the circuit is R_i = 1 k$$\Omega $$. If the battery voltage V_B varies from 8 V to 16 V, what are the minimum and maximum values of the current through Zener diode? JEE Main 2019 (Online) 10th April Evening Slot Physics - Semiconductor Question 103 English

JEE Main 2019 (Online) 10th April Evening Slot Physics - Semiconductor Question 103 English

0.5 mA; 8.5 mA

1.5 mA; 8.5 mA

1 mA; 8.5 mA

0.5 mA; 6 mA

JEE Main 2019 (Online) 10th April Morning Slot

MCQ (Single Correct Answer)

-1

An npn transistor operates as a common emitter amplifier, with a power gain of 60 dB. The input circuit resistance is 100$$\Omega $$ and the output load resistance is 10 k$$\Omega $$. The common emitter current gain $$\beta $$ is :

10⁴

10²

6 × 10²

JEE Main 2019 (Online) 9th April Evening Slot

MCQ (Single Correct Answer)

-1

The logic gate equivalent to the given logic circuit is :- JEE Main 2019 (Online) 9th April Evening Slot Physics - Semiconductor Question 105 English

NAND

AND

NOR

JEE Main 2019 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

-1

An NPN transistor is used in common emitter configuration as an amplifier with 1 k$$\Omega $$ load resistance. Signal voltage of 10 mV is applied across the base-emitter. This produces a 3 mA change in the collector current and 15μA change in the base current of the amplifier. The input resistance and voltage gain are :

0.67 kW, 200

0.33 kW, 1.5

0.67 kW, 300

0.33 kW, 300

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