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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 14
11.
The I/P impedance (Zi) and the O/P impedance (Zo) of an ideal trans conductance (Voltage controlled current source) amplifier are
Zi = 0, Zo = 0
Zi = 0, Zo = ∞
Zi = ∞, Zo = 0
Zi = ∞, Zo = ∞
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
The relation between thermionic emission current and temperature is known as
Richardson Dushman equation
Langmuir child law
Ohm's law
Boltzmann's law
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.

Assertion (A): When forward biased a p-n junction has low resistance.

Reason (R): The ratio is called dynamic resistance.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.

Assertion (A): JFET is a voltage controlled device.

Reason (R): The drain current can be controlled by controlling VGS.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
For a P-N junction diode, the current in reverse bias may be
few amperes
between 0.5 A and 1 A
few milliamperes
few micro or nanoamperes
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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