Normal type of MCQ with one correct option
The electrical conductivity of semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. The band gap in eV for semiconductor is
1.1 eV
2.5 eV
0.5 eV
0.7 eV.
Normal type of MCQ with one correct option
In a common base amplifier, the phase difference between the input signal voltage and output signal voltage is
0
Normal type of MCQ with one correct option
In a full wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the ripple would be
50Hz
100 Hz
25 Hz
70.7 Hz.
Normal type of MCQ with one correct option
Which of the following gates is a universal gate
OR
AND
NOT
NAND.
A,B
B
C,D
A,B, & D
/
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not correct explanation of A
A is true, R is false
A is false, R is true