What is ohms law

Question

What is ohms law

mrnood · Answer

If you are studying electricity then you will find that Ohm's Law is the basic relationship describing flow of current through a resistor.

Check your text book or reference - it is a simple relationship  which will be a building block for understanding electricity flow.

anonymous · Answer

I=V/R

anonymous · Answer

current, I = voltage, V / resistance, R

anonymous · Answer

The potential difference across the ends of the conductor is directly proportional to the current flowing through it

mrnood · Answer

Since it is the potential difference which CAUSES the current flow it would be more intuitive to say 

"The current flowing through a resistor is directly proportional to the Potential Difference across it" 
(I am aware that this is the SAME statement -  but puts the cause/effect more clearly)

Potential difference is measured in Volts
Current is usually denoted by letter I and is measured in Amps
Resistance is usually denoted by letter R and is measured in Ohms

The relationship is (as given above) I = V/R

the corollary is - the Current, for a given Voltage is INVERSELY proportional to the resistance.