Electricity

Question 1

What is current?

Answer 1

Current is the rate of flow of electric charge, measured in amperes (A) by an ammeter

Question 2

What is charge?

Answer 2

Charge is the flow of electrons through an electric circuit, measured in coulombs (C)

Question 3

What is potential difference?

Answer 3

Potential difference or voltage is the driving force that pushes the charge around, measure in volts (V) by a voltmeter

Question 4

What is resistance?

Answer 4

Resistance is anything in the electrical circuit which slows the charge flow down, measured in ohms (Ω)

Question 5

What equation links charge, current and time?

Answer 5

I = Qt
Current = charge x time

Question 6

What is the equation for resistance, voltage and current?

Answer 6

Voltage = current x resistance
V = IR

Question 7

What equation links potential difference, charge and energy transferred?

Answer 7

Voltage = energy transferred/charge
V = E / Q

Question 8

Does the current and voltage stay the same or split in a series circuit?

Answer 8

Current stays the same, voltage splits

Question 9

Does the current and voltage stay the same or split in a parallel circuit?

Answer 9

Current splits evenly (depending on resistance) voltage stays the same