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Q. Why a common collector amplifier is called an emitter follower?
When the input voltage goes through its positive half cycle, the output voltage is also seen to go through its positive half cycle. In other words the output and input are in phase with each other. Besides the magnitude of the output and input are about the same. Thus the emitter voltage (i.e. output voltage) closely follows the input voltage. Hence the name emitter follower.
Q. The inductance per unit length in H/mfor parallel plate in?nitely long conductors in air is given by L = µ 0 d/w = 4π×10 -7 d/w, where d and w are inmeters.Compute L (per unit
What is the similarities between a vacuum diode and a triode?
Metals, Semiconductors, and Insulators For electrons to move within an applied electric field there have to be states available to them. A totally filled band ca
Q. Express the waveform of the staircase type shown in Figure as a sum of step functions.
Calculate the diameter of copper wire of length 100 metres used as winding material in a transformer such that the resistance of the whole winding is 2 ohms. Calculate the diameter
The Ward-Leonard system, which is used in the control of large dc motors employed in rolling mills, is a highly flexible arrangement for effecting position and speed control of a s
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A 6-pole armature has 1000 conductors and a flux per pole of 40mWb. Determine the e.m.f. generated when running at 600 rev/min when (a) lap wound (b) wave wound.
Data Communication 1. Write short notes on: a. Sky wave propagation b. Line of sight propagation 2. List and describe the different types of errors that occur during dat
What is a microcomputer? A computer that is designed using a microprocessor as its CPU is known as microcomputer
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