Energy and power formulas

• What are the 3 equations for energy and its units?

  1)Energy (Joules) = Power (Watts) x Time (s)

  E = Pt

  2)Energy (Joules) = Voltage (Volts) x Current (Amps) x Time (s)

  E = VIt

  3)Energy (Joules) = Charge (Coulombs) x Voltage (Volts)

  E = QV
• What are the 2 formulas for power and its units?

  1)Power (W) = Current (A) x Voltage (V)

  P = IV

  2)Power (W)= Current^2 (A)x Resistance(Ω)

  P = I^2 × R