ECE :: Exam Questions Paper
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Assertion (A): The expression E = - ΔV, where E is the electric field and V is the potential is not valid for time varying fields.
Reason (R): The curl of a gradient is identically zero.
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At 20 GHz , the gain of a parabolic dish antenna of 1 meter diameter and 70% efficiency is
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Hysteresis loss in a transformer working at 220 V and at a frequency of 50 Hz is 100 W. When the transformer is operated at 220 V and at a frequency of 100 Hz, what is the hysteresis loss?
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The pole-zero plot given below corresponds to a
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Given below impulse response of two system
h1(n) =
[x(n + 1) - 2x(n) + 3x(n - 1)]
h2(t) = e-2t u(4 - t)
The correct statement is: -
In the circuit shown, what value of RL maximizes the power delivered to RL?
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Which of the following is not an electromagnetic device?
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