How do I add resistors in parallel?

How do you add resistors in parallel?
This short video will show you how we get the equation for the equivalent parallel resistance.
Using Ohm's Law, the fact that the current splits between the resistors, and the fact that all three resistors have the same voltage, we can get a useful equation.
Don't forget to take the inverse before recording your answer.
#learnphysics #apphysics #circut #physicslab #parallelcircuit
For a worked problem, check out...
• Adding Two Resistors i...

[@kamicj3522]

On a TI-84 calculator you can also input the number for instance, if you have 3 resistors 10ΚΩ, 100ΚΩ, 20ΚΩ. On the calculator in engineering mode you put 10E3 x negative 1 symbol plus the next number which is 100KΩ and the same for the last number

[@8SxMURxI8]

For example if one of the 3 resistors is 6 and other is 3 and other is twelve the total R is going to be 12 devided by 7 . That's so easy i solved it without picking my pen up

[@Arestkaramazov]

you can practice this type of exercise in EEDojo

[@Science_lover24]

😮😅😮

[@FawazFaizal]

Z.

[@anonymousejones8742]

So the end result would be :
3/ R1+R2+R3
Like this?

[@PhysicsThisWeek]

Not quite. You need to have a common denominator in order to add fractions. For three separate resistors, its probably easier to just put things into your calculator this way.
Step 1: (1/R1) + (1/R2) + (1/R3) Hit enter.
Step 2: Hit the (1/x) button.
Some calculators have an (ANS) key, with those, you'd do (1/ANS) for Step 2.
Either of these two methods would work, just don't do both.