equations

equations

1. power = energy transferred/time

   • p=E/t

2. power = work done/time

   • p=W/t

3. efficiency= useful output energy transfer/total input energy transfer

4. wave speed= frequency x wavelength

5. charge flow= current x time

   • Q=It

6. potential difference= current x resistance

   • V=IR

7. Power= potential difference x current

   • P=VI

8. energy transferred= power x time

   • E=Pt

9. energy transferred= charge flow x potential difference

   • E=QV

10. density= mass x volume

    • p=m/V