Topic 2 - Electricity Flashcards
charge (Equation)
charge = current x time Q=I t
charge (Units)
charge - C (coulombs) current - A (amps) time - s (seconds)
potential difference (Equation)
potential difference = current x resistance V=I R
potential difference (Units)
potential difference - v (volts) current - A (amps) resistance - Ω (ohms)
power *1* (equation)
power = potential difference x current P=V I
power *1* (Units)
power - W (watts) potential difference - V (volts) current - A (amps)
power *2* (Equation)
power = (Current)² x resistance P=I² R
power *2* (Units)
power - W (watts) current - A (amps) resistance - Ω (ohms)
energy transferred *1* (Equation)
energy transferred = power x time E=P t
energy transferred *1* (Units)
energy transfered - J (joules) power - W (Watts) time - s (seconds)
energy transferred *2* (Equation)
energy transferred = charge x potential diffrerence E=Q V
energy transferred *2* (Units)
energy - J (joules) charge - C (coulombs) poetential difference - V (volts)
