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Self-inductance and the induced e.m.f
Inductance is the name given to the property of a circuit whereby there is an e.m.f induced into the circuit by alter of flux linkages produced by a current change. When the e.m.f is induced in the similar circuit as that in which the current is changing, the property is known as self-inductance, L.
The dielectric constant of air is practically taken as (A) more than unity. (B) Unity. (C) less than unity. (D) Zero.
Q. Compare in-channel signalling with common channel signalling? Network wide signalling also involves end to end signalling between originating exchange and the terminating ex
The field winding of a 200 V d.c. machine has a resistance of 20? and an inductance of 500mH. Calculate: (a) The time constant of the field winding (b) The value of curr
Four Quadrant Chopper or Class E chopper Figure class E chopper circuit Mode I When
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In the circuit above, V1 is a dc supply which outputs 12V, R1 has a value of 100 Ω and C1 is 100µF. The switch has been left in the position shown for a long time such that there i
why we use companding
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Q. The energy stored in a 2-µH inductor is given by w L (t) = 9e -2t µJ for t ≥ 0. Find the inductor current and voltage at t = 1 s.
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