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an electric current that changes it direction or strength repeatedly

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13y ago

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When an alternating voltage is applied to purely resistive circuit what happens?

When an alternating voltage is applied to a purely resistive circuit, the resulting current is in phase with the voltage.


What is it mean to say that an alternating current leads or lags an alternating emf?

It is another way of saying that the circuit is capacitive reactive circuit. Look up the mnemonic ELI the ICE man. ELI, voltage leads the current in an inductive circuit. ICE, current leads the voltage in a capacitive circuit.


An alternating current consists of charges that?

move back and forth in a circuit. :)


What describes the flow of electric current in an AC circuit?

alternating curet


The total opposition to an alternating current presented by a circuit is called a?

impedance


The opposition to the flow of electrical current?

In a DC circuit . . . resistance. In an AC circuit . . . impedance.


What is 300 VAC?

300 VAC stands for 300 volts AC, which is the measure of electrical potential difference in an alternating current (AC) circuit. It signifies the peak voltage that the circuit can reach.


When current in a circuit reverses its direction in a regular pattern it is called?

An "Alternating Current" (AC).


Which is a circuit used to change alternating current to direct current?

Insufficient information given.


The electrical circuit most likely used in everyday appliances is?

AC - Alternating Current


What is an active power?

An active power is the real component of the power of an alternating current circuit.


Can a step down transformer increase current in a DC circuit?

Transformers only work with alternating currents. So the answer is Yes, BUT it would have to be a DC Pulsing circuit. using flip flop circuit or a 555 circuit or chop circuit.