Electronics Flashcards

Electronics flashcards similar to questions on the ASVAB. Including Ohms law, resistance, load, alternating and direct current and more

Frequency

What is the frequency?

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Frequency is the number of complete cycles from one direction to the other. Each time an AC current alternates, and the changes back is a complete cycle.

Frequency
Load

The load of an electric circuit is:

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The load is the amount of power consumed by a circuit.

Load
Electric Circuit

An electric circuit is:

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A loop of conducting material that goes from a power source to the load and back.

Electric Circuit
Electrons

What are electrons?

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Electrons are subatomic particles that carry a negative charge.

Electrons
Resistive Circuit

What is a resistive circuit?

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A resistive circuit only contains a power source and resistors.

Resistive Circuit
Mechanical and Electrical Energy

What device turns mechanical energy into electrical energy?

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An alternator is an electromagnetic device that turns mechanical energy into electrical energy.

Mechanical and Electrical Energy
Voltage

Two wires run to a machine. One wire is 10mm thick, and the other is 5mm. If the two wires are carrying the same current, the larger wire:

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If the two wires are carrying the same current, the larger wire requires less voltage.

Voltage
Residential Power

Is residential power AC or DC current?

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Residential power is alternating current, AC.

Residential Power
Alternating & Direct Current

What is the difference between alternating and direct current?

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In alternating current (AC, also ac), the movement of electric charge periodically reverses direction. In direct current (DC, also dc), the flow of electric charge is only in one direction.

Alternating & Direct Current
Ohm’s Law

Ohm’s law states

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Ohm’s law states the voltage across a resistor is equal to the product of the resistance and the current flowing through it.

Ohm’s Law

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Modified: October 23rd, 2017
Published: October 23rd, 2017

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