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If an FM signal is given by sFM(t) = 100 cos [2πfct +100 m(τ ) dτ ] and m(t) is given in figure, sketch the instantaneous frequency as a function of time and determine the peak frequency deviation.
Q. In plotting a hysteresis loop the following scales are used: 1 cm = 400 At / mand 1 cm=0.3 T. The area of the loop for a certain magnetic material is found to be 6.2 cm 2 . Calc
Q. Consider an RL series circuit excited by (a) v(t) = 20e -2t V, and (b) v(t) = 20 V. Determine the forced component of the voltage across the inductor for R = 2 and L = 2H.
Since a controlled source acts at its terminals in the same manner as does an independent source, source conversion and application of KCL and KVL relations are treated identically
what is emitter efficiency
What is Inductance Inductance - the property of an electric circuit by which an electromotive force is induced in it as the result of altering magnetic flux. Electromagn
Q. Show NPN Common Collector Amplifier? The common collector amplifier, often called an emitter follower since its output is taken from the emitter resistor, is useful as
use of ranging and attenuator circuit
Explain the different types of polarizations. Polarizations are of three types. i. Electric polarization ii. Ionic polarization. iii. Dipolar polarization.
why do we use commutator?
Q. Draw a neat circuit of Colpitt's oscillator using an n-p-n transistor. Give its equivalent circuit obtain expressions for (i) frequency of oscillation and(ii) minimum gain for s
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