ALL THE EQUATIONS Higher level
In the following slides each of the negative charge symbols represents a charge of 1Coulomb and NOT 1 electron. This has been done in an attempt to make the relationships easier to understand.
- - - - - - - - - - - - - - - ? 3A How much charge flows Charge = current x time (Coulombs = amps x seconds) - - - - - ? 3A - How much charge flows through the ammeter (a) in 5 seconds? (b) in one minute? (c) in one hour? - - 15 Coulombs - - 180 Coulombs - - 10 800 Coulombs - - -
- - - - - - - - ? 4A How much charge flows through the ammeter Charge = current x time (Coulombs=ampsxseconds) - - ? 4A - - - How much charge flows through the ammeter (a) in half a minute? (b) in 10 minutes? (c) in 2 hours? 120 Coulombs 2 400 Coulombs 28 800 Coulombs
- - - - - - - - ?A 8Coulombs of charge flows in 4 seconds. Charge = current x time (Coulombs = amps x seconds) - - - - - ?A - - - 8Coulombs of charge flows in 4 seconds. What current is flowing? 2 Amps
- - - - - - - - - - - - - - - Series rules and p.d. = current x resistance (Volts) (Amps) (Ohms) - - - - - ? 3A - 24V supply - - - - ? ? - - 2 Ohms 6 Ohms - - -
- - - - - - - - - - - - - - - Power = pd x current (Watts) (volts) (amps) - - - - - ? 3A - 24V supply - - - - 6V 18V - - - - -
(Joules) (Coulombs) (volts) Energy = charge x pd (Joules) (Coulombs) (volts) Pd = 200 000Volts Charge = 8 Coulombs Energy = 1 600 000Joules 1 600 kJ 1.6MJ previous previous next next smart smart
C A s V A O W J A J V C charge = current x time (Coulombs) (Amps) (secs) A s V P D = current x resistance (Volts) (Amps) (Ohms) A O W power = P D x current (Watts) (Joules) (Amps) J A J energy = P D x Charge (Joules) (Volts) (Coulombs) V C
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