ELECTRICITY - FLASHCARDS - NAT 5

SUMMARY OF ELECTRCITY UNIT

What is Voltage?

The number of Joules given to each Coloumb of charge

What is Current?

The flow of electrons in a circuit

What is Resistance?

An opposition to current

What is Alternating Current?

When the electrons move to and fro at a frequency of 50Hz

What is Direct Current?

When the electrons move in one direction

How does a Charged Particle behave in an Electric Field?

Repelled by particles with the same charge, opposites attract

What is Ohm’s Law?

V = IR

What is Electrical Power?

How quickly energy is transferred or used in a circuit

How do Electron’s move around a Circuit?

Repelled from the negative charge from the negative terminal of the battery then attracted to the positive charge

What is the rule for Voltage in a Series Circuit?

VT = V1 + V2

What is the rule for Voltage in a Parallel Circuit?

VT = V1 = V2

What is the rule for Current in a Series Circuit?

IT = I1 = I2

What is the rule for Current in a Parallel Circuit?

IT = I1 + I2

What is the rule for Resistance in a Series Circuit?

RT = R1 + R2

What is the rule for Resistance in a Parallel Circuit

1/RT = 1/R1 + 1/R2