Equations Flashcards
1
Q
Voltage (V) = ?
A
Voltage (V) = Work Done (J) / Charge (C)
2
Q
Current (A) = ?
A
Current (A) = Charge (C) / Time (s)
3
Q
Voltage (V) = ?
A
Current x Resistance ( V = IR)
4
Q
Total Resistance in series?
A
R1 + R2
5
Q
Total resistance in parallel
A
1/Rtotal = 1/R1 + 1/R2
6
Q
Transformer equation
A
Number of turns in primary coil (Np)/Number of turns in secondary coil (Ns) = Voltage in primary coil (Vp) / Voltage in secondary coil (Vs)
7
Q
Power = ?
A
Voltage x Current
8
Q
Energy transfer =
A
Power x Time
9
Q
Speed =
A
Distance/time
10
Q
Acceleration =
A
Change in velocity/time
11
Q
Momentum =
A
Mass x velocity
12
Q
Force=
A
Mass x acceleration
13
Q
Force (N) =
A
Force (N) = change in momntum(kg m/s) / change in time (s)
14
Q
Work done (J) =
A
Work done (J) = Force (N) x Distance (m)
15
Q
Power =
A
Power = energy (J) / time (s)
