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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 7
6.
Resistivity of metals is expressed in terms of
μ ohm
μ ohm/cm
μ ohm-cm
μ ohm-cm/°C
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
Figure shows characteristics curves for bipolar transistor. These curves are
output characteristics of n-p-n transistor (common base)
output characteristics of p-n-p transistor (common base)
output characteristics of n-p-n transistor (common emitter)
output characteristics of p-n-p transistor (common emitter)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Zener diode is invariably used with
forward bias
reverse bias
either (a) or (b)
zero bias
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The relation between plate current and plate voltage of a vacuum diode is called
Richardson Dushman equation
Langmuir Child law
Ohm's law
Boltzmann's law
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Given that the band gap of cadmium sulphide is 2.5 eV, the maximum photon wavelength, for e--hole pair generation will be
5400 mm
540 mm
5400 Å
540 Å
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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