What happens when an alternating current is flowing in the coil?

When alternating current is applied to the coil, the rising and falling magnetic field created by the current causes the magnet to spin, which turns the shaft.

Why does inductive reactance increases with frequency?

The inductive reactance of an inductor increases as the frequency across it increases therefore inductive reactance is proportional to frequency ( XL α ƒ ) as the back emf generated in the inductor is equal to its inductance multiplied by the rate of change of current in the inductor.

What is inductance in AC circuit?

Inductance is the link between electric circuits and magnetic fields. Most AC circuits contain some type of inductance, in which case the current waveform lags the voltage or reaches its peak slightly after the voltage waveform. A lagging current indicates an inductive circuit.

What is reactance in AC circuit?

Reactance is the measure of the opposition to the flow of alternating current caused by the inductance and capacitance in a circuit rather than by resistance. Reactance is present in addition to resistance when conductors carry alternating current.

Why is alternating current induced in the coil?

As one side of the coil moves up through the magnetic field , a current is induced in one direction. As the rotation continues and that side of the coil moves down, the induced current reverses direction. This means that the generator produces a current that is constantly changing. This is alternating current or a.c.

What changes direct current to alternating current?

Appliances that need DC but have to take power from AC outlets need an extra piece of equipment called a rectifier, typically built from electronic components called diodes, to convert from AC to DC. You’d then be a kind of mechanical inverter, turning the battery’s DC power into AC at a frequency of 50–60 hertz.

What happens when an alternating voltage is applied to a purely resistive circuit the?

AC Voltage when applied to a purely Resistive circuit behaves similar to a DC Circuit. In such a circuit, both the Current and Voltage are said to be ‘in-phase’ as there is no phase difference between them. The Current Flowing in the circuit is directly proportional to the voltage applied.

When the frequency of an AC circuit containing resistance and inductance is increased the current?

If the frequency of alternating current in an ac circuit consisting of an inductance coil is increased then current gets decreased.

What is the impedance of AC current?

AC impedance is the gauge of opposition a circuit presents to current each time a voltage is applied. In a more quantitative sense, it is the ratio of voltage to current within alternating current. Impedance can be extended to the idea of AC circuit resistance and include both phase and magnitude.

What is impedance of an alternating current circuit?

Impedance in alternating current circuit is defined as the net opposing factor to flow of current. This opposition may be due to Resistance & Inductance or Resistance & Capacitance or Resistance, Inductance and Capacitance. It is denoted by symbol Z. Z is often expressed as Z = R+jX where X is the reactance.

How does an alternating potential difference create an alternating current?

The alternator As one side of the coil moves up through the magnetic field, a potential difference is induced (created) in one direction. This means that the alternator produces a current that is constantly changing. This is alternating current or ac.

When does a coil experience an induced current when magnetic field varies?

A coil experiences an induced current when the magnetic field passing through it varies. (a) When the magnet moves toward the coil the current is in one direction. (b) No current is induced while the magnet is held still.

What is the inductive reactance of a 55MH coil?

Example: An inductor of 55mH, ​​has a frequency of 50Hz, which is its inductive reactance, to find the answer it must be multiplied: 2xπx50x55x10 ^ -3 = 17,28Ohm A coil has an inductance of 0.5H. What will be the value of the inductive reactance, if the coil has a frequency of 100Hz?

Why does an inductor resist the flow of alternating current?

An inductor resists the flow of an alternating current as a result of its inductance. Any inductor resists a change in the current as a result of Lenz’s Law. The degree to which the inductor prevents current flow is due to its inductive reactance.

What happens when the magnetic flux changes in a loop?

If the magnetic flux through a loop of wire changes for any reason either by changing the area, A, of the loop or the field, B, through the loop Then an EMF (voltage) will be induced in the wire. This voltage will cause a current to flow (the induced current in the loop).