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Let ω = 2π × 60 rad/s corresponding to a frequency of 60 Hz. (a) Consider v(t) = 100 √2 cos(ωt + 30°) V and i(t) = 10 √2 sin(ωt + 30°) A. Find the corresponding phasors ¯V and ¯
Q. What is the need for bias stabilization in BJT? BJT or bi-polar junction transistor is a three terminal, two junction semiconductor device and the conduction is due to the m
Write a short explanation of the principles of super-heterodyne receiver. It may help to use sample block diagram to state the process. Why is the production of the intermediate fr
Merits and Demerits of Voltage divider bias: Merits: 1. Not like the above circuits, only one dc supply is essential. 2. Operating point is approximately independent o
Bronze is an alloy of (A) Copper. (B) Aluminium. (C) Silver. (D) Carbon. Ans: Bronze is an alloy of copper.
A 0.1µF capacitor is charged to 200 V before being connected across a 4 kΩ resistor. Determine: (a) The initial discharge current (b) The time constant of the circuit
Q. Describe about transmission-line voltage regulation? The transmission-line voltage regulation (TLVR) is the ratio of the per-phase voltage drop between the sending-end and r
Some wire of cross-sectional area 1mm 2 has a resistance of 20Ω. Determine: a) The resistance of a wire of the same length and material if the cross-sectional area is 4 mm 2 .
Q. Explain about Subscriber loops signalling? In a telephone network, subscriber loop signal linger lies upon the kind of a telephone instrument used. The intra exchange signal
Define Causal System - Discrete Time Systems? A causal system is one which produces an output only when there is an input. All physical systems are causal. In general, a causal
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