P3 - Electricity Flashcards
charge = ?
charge = current x time
Charge not current!
energy transferred = ?
energy transferred = potential difference x charge
power = ?
power = potential difference x current
Link current and resistance.
power = ?
power = current² x resistance
voltage = ?
voltage = current x resistance
1 couloumb = ? electrons
1 coulomb = 6.25 x 10¹⁸
Current is series is ….
Current is series is the same all around the ciruit. (A1 = A2 = A3)
Current in parallel is ….
Current in parallel is in branches that are added to give the total current. (A1 = A2 + A3)
Potential difference in series is ….
Potential difference in series is shared.
(Vtotal = V1 + V2 + V3)
Potential difference in parallel is ….
Potential difference in parallel across each branch = total potential difference. (Vtotal = V1 = V2)
As temperature increases, resistance ….
As temperature increases, resistance decreases.
As light intensity increases, resistance ….
As light intensity increases, resistance decreases.
