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Q. Show Operation on JFET? The junction in the JFETis reverse-biased for normal operation.No gate current flows because of the reverse bias and all carriers flow from source to
Diac Diac is a device which has di electrode and as its name suggests it works on AC. The cross sectional view of a diac is shown if the four layers are PNPN and PNPN .
Reverse bias Reverse biased generally refers to how a diode is employed in a circuit. If a diode is reverse biased, the voltage at the cathode is gets higher than that at the
Q. A satellite radio transmitter has P in = 3 W and G t = 30 dB. The receiving antenna has a circular aperture with radius r at the ground station 30,000 km away. Find r in meter
Q. With a neat circuit diagram explain the working of a Hartley oscillator using an npn transistor and obtain the expression for oscillation frequency and for minimum gain for sust
1. Work out the voltage for the following arrangement of 1.5V cells : (to achieve a pass grade, solve problems with cells in series, parallel and series-parallel) 2.
DC chopper This is one stage conversion device which is used for direct conversion of fixed de voltage at a level to an adjustable dc voltage at another level.
a. Determine how color sync burst and H deflection sync vary in amplitude and frequency. Also explain the difference in timing among the 3.58 MHz color sync burst and 3.58 MHz chro
Design a logic circuit with 4 inputs A, B, C & D that will produce output ‘1’ only whenever two adjacent input variables are 1’s. A & D are also to be treated as adjacent, impleme
Q. Show television waveform? The television waveform representing one scan is illustrated in Figure. A blanking pulse with a duration of 0.18 of the horizontal - sweep period T
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