electircy Flashcards
1
Q
What is an electric current
A
an electric current is a flow of charge carriers
2
Q
the charge on charge carriers, is ____
A
Quantised
3
Q
Q = It
A
Q = charge/C I = current/A t = time/s
Charge = Current x time
Current = Charge/time
4
Q
1.5 volts =
A
1.5 joules per column
5
Q
Q =
A
Q = It
6
Q
How many days in a year
A
365.25
7
Q
How many seconds in a year
A
31557600 seconds
8
Q
What is voltage
A
potential difference
9
Q
What is potential difference
A
the energy transferred per unit charge
10
Q
Voltage equation
A
V = IR Voltage = current x resistance
11
Q
PD equation
A
PD = work/charge
PD = energy/charge
