User talk:Oluwamacy

OHM’s LAW
OHM’s LAW

Ohm’s Law states that, the potential different (P.D) across a wire is directly proportional to the current that pass through it provided that temperature and other physical quantity or the condition of the conductor remain constant.

FOMULA TO FIND RESISTANCE

R=PL/A

Where we’ve R as the Resistance

L as the Length

A as the Area

FOMULA TO FIND A

A=Pi•r2

FOMULA TO FIND CURRENT 

I = V/R

Where we’ve I as the Current

V as the Voltage

R as the Resistance

EXAMPLE

A copper wire has a length of 160m and a diameter of 1.00mm. If the wire is connected to a 1.5 - Volt Battery, how much current flows through the wire?

(For Copper, P = 1.72•10-8 Ohms

SOLUTION

R=PL/A

L = 160m, V = 1.5V

For Copper, p = 1.72•10-8

I = ?

A=Pi•r2

= 3.14(0.005)2 = 7.85•10-7m2 Oluwamacy (talk) 10:11, 18 February 2023 (UTC)

March 2023
Hello, I'm Yoshi24517. I noticed that in this edit to Soil policy (Victoria, Australia), you removed content without adequately explaining why. In the future, it would be helpful to others if you described your changes to Wikipedia with an edit summary. If this was a mistake, don't worry, the removed content has been restored. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you.  Yoshi24517 ( Chat ) ( Online ) 19:07, 15 March 2023 (UTC)