Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Electronics and Communication Engineering
»
Electronic Devices and Circuits
At room temperature the current in an intrinsic semiconductor is due to
holes
electrons
ions
holes and electrons
Correct Answer:
holes and electrons
Explanation:
Intrinsic material has equal number of holes and electrons.
← Previous Question
Next Question→
More Questions from
Electronic Devices and Circuits
In the circuit of figure the function of resistor R and diode D are
In a bipolar transistor which current is largest
Assertion (A): The conductivity of p type semiconductor is higher than that of intrinsic semiconductor. Reason (R): The addition of donor impurity creates additional energy levels below conduction band.
A transistor has two p-n junctions. The batteries should be connected such that
A transistor has a current gain of 0.99 in the CB mode. Its current gain in the CC mode is
A p-n junction diode has
Assertion (A): The reverse saturation current in a semiconductor diode is 4nA at 20°C and 32 nA at 50°C. Reason (R): The reverse saturation current in a semiconductor diode doubles for every 10°C rise in temperature.
Calculate the stability factor and change in IC from 25°C to 100°C for, β = 50, RB/ RE = 250, ΔIC0 = 19.9 nA for emitter bias configuration.
An increase in temperature increases the width of depletion layer.
An amplifier without feedback has a voltage gain of 50, input resistance of 1 kΩ and output resistance of 2.5 kΩ. The input resistance of the current shunt -ve feedback amplifier using the above amplifier with a feedback factor of 0.2 is
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments