1
JEE Main 2021 (Online) 22th July Evening Shift
Numerical
+4
-1
In a given circuit diagram, a 5 V zener diode along with a series resistance is connected across a 50 V power supply. The minimum value of the resistance required, if the maximum zener current is 90 mA will be __________ $$\Omega$$.

2
JEE Main 2021 (Online) 20th July Evening Shift
Numerical
+4
-1
A zener diode having zener voltage 8 V and power dissipation rating of 0.5 W is connected across a potential divider arranged with maximum potential drop across zener diode is as shown in the diagram. The value of protective resistance Rp is .................... $$\Omega$$.

3
JEE Main 2021 (Online) 20th July Evening Shift
Numerical
+4
-1
For the forward biased diode characteristics shown in the figure, the dynamic resistance at ID = 3 mA will be __________ $$\Omega$$.

4
JEE Main 2021 (Online) 18th March Evening Shift
Numerical
+4
-1
The typical output characteristics curve for a transistor working in the common-emitter configuration is shown in the figure.

The estimated current gain from the figure is __________.
JEE Main Subjects
Physics
Mechanics
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
Coordinate Geometry
Calculus
EXAM MAP
Joint Entrance Examination