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What else can I help you with?
Why The Excitation current is non-sinusoidal when applied voltage is sinusoidal?
excitation voltage is sinusoidal because it is taken from the terminal of alternator but excitation current is non-sinusoidal because it always dc.
How as the blank applied to a circuit increases the power and the current also increase?
answer is actually voltage
What is principle of autotransformer?
to step up or step down high voltageAnswerThe principle is that of electromagnetism. An auto transformer has only one winding which has (usually) one tap on it.If a voltage is applied across the whole winding, and connections are made between one end and the tap, a lower voltage is available on those connections.The magnitude of that voltage has a ratio to the overall applied voltage as the ratio of the number of turns across which the voltage is taken, to the total number of turns.Or, if a voltage is applied between one end of the winding and the tap, then an increased voltage may be obtained across the whole winding.The ratio of the two voltages being the same as the ratio between the number ..... but I'm sure you can guess the rest.
What function does a capacitor serve in an auto transformer?
An autotransformer does not normally use any capacitors as it is a transformer with one winding and the lower voltage is taken from a tap part-way up the winding. A capacitor could be added if there is a concern about the power factor presented by the autotransformer to the supply.
What is the use of FET in balanced modulator?
as we know that for AM generation we use non linear resistances i.e. those in which current doesn`t vary linearly with applied voltage ;so here voltage is applied at the gate terminal let us say v(v1+v2 or v1-v2) then current will be given as like taken the general form for non linear resistance ....
What do we call the voltage that is provided by a transformer?
This is the transformed voltage, but it might also be identified as the secondary voltage as it is taken from the secondary winding.
Why the filter used in rectifier circuit?
Filter capacitors smooth out the pulsating DC. Without the capacitors, the pulsating DC drops to zero at the AC crossing point, unless it is a three phase rectifier. Sometimes, that is sufficient. Sometimes, they are followed up with a regulator circuit that further stabilizes the DC.
What is an emitter follower?
This is a particular transistor amplifier configuration. In general, the input signal is applied to the base, the collector is connected to a supply voltage, and the output is taken between the emitter and power supply common. One of the characteristics of the emitter follower is the output voltage "follows" the input, but the output is reduced by the Vbe voltage (the voltage drop between base and emitter, approximately 0.7 V for a silicon bipolar transistor).
How many voltage taken to electric train?
25000v
What is the difference between a transformer and a rectifer?
A transformer is used to change the value of a voltage applied to the transformer's primary winding to a different voltage value taken from the transformers secondary winding. A rectifier is used to change an alternating current value to a direct current value.
How does a Colpitts oscillator work?
A Colpitts oscillator is the electrical dual of a Hartley oscillator. In the Colpitts circuit, two capacitors and one inductor determine the frequency of oscillation. The feedback needed for oscillation is taken from a voltage divider made by the two capacitors, where in the Hartley circuit the feedback is taken from a voltage divider made by two inductors (or a tapped single inductor). (Note: the capacitor can be a variable device by using a varactor). Oscillation frequency The ideal frequency of oscillation for the circuit is given by the equation: where the series combination of C1 and C2 creates the effective capacitance of the LC tank. Real circuits will oscillate at a slightly lower frequency due to junction capacitances of the transistor and possibly other stray capacitances
How is emu oil taken?
Emu oil can be taken as capsules, or it can be applied topically to affected areas.
