In a PN junction with no external voltage, the electric field between acceptor and donor ion is called a
The capacitance of a reverse-biased PN junction
For a PN junction diode, the current in reverse bias maybe
When PN junction is in forward bias, by increasing the battery voltage
When a PN junction is reverse biased
Which of the following is true for a pnp transistor in saturation region?
When transistors are used in digital circuits they usually operate in the:
A transistor has a of 250 and a base current, IB, of 20 A. The collector current, IC, equals:
A current ratio of IC/IE is usually less than one and is called:
In a C-E configuration, an emitter resistor is used for:
Which factor determine the output voltage of an op-amp?
The common mode gain is ___________
When a step-input is given to an OP-amp integrator, the output will be
An OPAMP has a slew rate of 5 V/μ S .The largest sine wave O/P voltage possible at a frequency of 1 MHZ is
[Hint: Slew rate is defined as the max. rate of change of output voltage. Its unit is V/μS.]
Calculate the cutoff frequency of a first-order low-pass filter for R1 = 2.5kΩ and C1 = 0.05μF
CRO stands for __________
C.R.O gives __________
Oscilloscope is __________
Electron beam is deflected in __________
CRO is a __________
Which of these is not a commandment of effective communication?
Who discovered the radio waves?
What is the component that converts an electrical signal into a signal suitable for transmission in a given medium called?
What type of communication is used for underwater communication?
A device that can both transmit and receive is called as?
