Voltage , Current and Resistance Flashcards

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1
Q

What is current ?

A

The flow of electrons

Measured in amps( usually MA) using an ammeter

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2
Q

What is voltage ?

A

This is the electrical energy that the electrons carry ( they get energy from the battery )

Measured in volts

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3
Q

What is resistance ?

A

Something which tries to stop the flow of current

Greater the resistance , smaller the current

Measured in ohms

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4
Q

What is the equation for voltage ?

A

Voltage = current x resistance

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5
Q

What is the equation for resistance

A

R = voltage / current

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6
Q

What is the equation for current ?

A

Voltage / resistance

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