Ohms Law Made Easy


Ohm's Law



What is ohms:Ω If anything moves/flows from one point to another it loses some energy in the form of heat due to the friction and that friction causes due to the internal and external resistance in the system; measured in ohm:Ω. Each and every materials have resistance either higher or lower.
There are various range of resistance value according to there color code. About that we will talk later-on.

Property of resistor:
  1. No polarity, hence can be connected from any side.
  2. Different type of resistance value according to the color code of resistor.
  3. Limits current according to the voltage applied.
  4. Suitable voltage for suitable output current when connected in series or parallel.


OHMS LAW:Ohms law is one of the basic law for Electronics which deals with the calculation for voltage (V), current (I) and resistance (Ω).
You can see here one of the world's simplest circuit which is the building block of electronics. Here,  
  • V stands for Voltage
  • I stands for Current (Amp)
  • R stands for resistance (Ω)
It states that current (I) is directly proportional to the applied voltage (V) but not for resistance of any circuit. Formula for Ohms Law:
Understanding  formula:
  • V=I*R (For voltage)
  • I=V/R  (For Current)
  • R=V/I  (For Resistance)
Why current are given limitation in the circuit ?In order to protect load from higher current, resistance should be fixed by using Ohm's Law.


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