Ohm's Law (scroll down to Ohm's Law Section)
Resistance Formula (Series)
Resistance Formula (Parallel) (IMPORTANT!)
Voltage Divider
Self Explanatory. To find the Resistance of a Series Circuit, just add up the individual resistors together. BOOM! You have your Answer.
Resistance Formula (Series):
Calculating the Effective resistance of resistors in a Parallel circuit can be tricky. But! Fred not, with practice you will be able to master the way of the Parallel circuits. There are 2 ways to calculate the resistance:
RE= R1 x R2/ R1 + R2
*Do take note that this formula can only be applied to 2 resistors in a parallel circuit.
RE= 1/R1 + 1/R2 + 1/R3 ...
*This formula can be applied to circuits with more that 1 resistor in a Parallel Circuit.
Voltage dividers is like ratio (but not really). The purpose of the voltage divider formula is to find the Output Voltage, VL. Here's the Formula:
VL = (R2 / R1+ R2) x Vs
*Take note of the Vs, R1 and R2 in the circuit diagram that you are given during your exam or test. You might get tricked by the Question. So Read!
Dear Junior Students
I'm still trying to update the page as much as I can! So please be patient.
If there's anything you think I (Rei from 4-4), Huai Zhi (Also from 4-4) and Mr Nor can add into the google site, please either tell us during school hours or Email me at reizhen29@gmail.com and the other 2 at their respective emails or you could also fill up this google forms for us!
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-Rei :)