18

In a purely inductive circuit, the CEMF waveform is ______ out of phase with the allied voltage waveform

180•

The web form of the CEMF is ______ Out of phase with the applied voltage

180•

In a inductive circuit, the CEMF waveform is 90• out of phase with the current waveform and 180• out of phase with the Applied voltage waveform, making the voltage waveform by ____•

90•

Self induced voltage is 180• out of phase with the _______

Applied voltage

The induced voltage in a conductor caring alternating current opposes the change in current flowing through the conductor. The induced voltage that opposes the current flow is called

CEMF, counter-electromotive force, back-EMF

For AC circuits, the AC _______ I have a conductor must be taken into consideration

Eddy currents, skin effects, resistance

Conductor resistance is directly proportional to the conductors length and cross sectional area

False

The movement of electrons caused by an external magnetic field is called "________ current," and the associated potential that is establish is called "______ voltage"

Induced

The direction of the overall magnetic field around the conductor follows the _________ Rule, based on the electron current flow theory

Left hand

In order to induce voltage relative motion is required between a conductor and a _________ field.

Magnetic

A common The glue use of induction is for

Motors, transformer, and generators

In DC circuits, the only property that affects current and voltage flow is

Resistance

As the alternating current Through a conductor increases in expanding and collapsing electromagnetic field through the conductor induces a voltage with the conductor. This is known as

Self induced voltage

The expanding in collapsing magnetic field within the conductor induces a voltage in the conductors CEMF that repels the flowing electrons toward the surface of the conductor. that is called

Skin effect

The magnitude of self induced voltage is within a winding is a directly proportional to the current flow, the winding, and the frequency at which magnetic fields cut through the winding

True

The magnitude of self induced voltage within a winding is directly proportional to the current flow, the winding, and the frequency at which magnetic field cut through the winding

True

When alternating current decreases the polarity of the induced voltage with them the conductor tries to prevent the current from decreasing

True

When alternating current increases, the polarity of the CEMF within the conductor tries to prevent the current from increasing

True

When electrons move the magnetic fields of the individual electrons combined to produce an overall magnetic field. The greater the current flow of the greater the overall magnetic field around the conductor

True

Self induced voltage opposes the change in current flowing in the conductor this called "inductive reactance" and is abbreviated

X L