1
JEE Main 2021 (Online) 24th February Morning Slot
+4
-1
If an emitter current is changed by 4 mA, the collector current changes by 3.5 mA. The value of $$\beta$$ will be :
A
0.875
B
0.5
C
3.5
D
7
2
JEE Main 2020 (Online) 6th September Morning Slot
+4
-1
Identify the correct output signal Y in the given combination of gates (as shown) for the given inputs A and B.
A
B
C
D
3
JEE Main 2020 (Online) 5th September Evening Slot
+4
-1
Two Zener diodes (A and B) having breakdown voltages of 6 V and 4 V respectively, are connected as shown in the circuit below. The output voltage V0 variation with input voltage linearly increasing with time, is given by :
(Vinput = 0 V at t = 0)
(figures are qualitative)
A
B
C
D
4
JEE Main 2020 (Online) 5th September Morning Slot
+4
-1
With increasing biasing voltage of a photodiode, the photocurrent magnitude :
A
Increases initially and after attaining certain value, it decreases
B
Increases linearly
C
Increases initially and saturates finally
D
Remains constant
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