Physics, asked by labsi, 2 months ago

what is ohms law explain steps to step​

Answers

Answered by Anonymous
1

AnswEr :-

  • At Constant Temperature Current Passes through the wire is directly proportional to Potential difference produced at both ends of the wire this is known as 'Ohm's law'.

Formula ➩ V= I × R

  • V ➩ Voltage
  • I ➩ Current
  • R ➩ Resistance
Answered by pramilaaaware
0

Answer:

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Explanation:

V=IR

Is the formula which is Ohm's law. According to this formula, V=IR, I=V/R, and R=V/I.

V means voltage, I means current, and R means resistance. So, Voltage equals Current times Resistance. To remember this, here is Ohm's Pyramid

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STEP 2: TO MAKE IT EASIER

In case you don't understand yet, here is an example:

You want to find the amount of ohms of resistance you need to power a device that uses

40mA (Milliamps) with a nine volt battery.

All you have to do is divide voltage(9) by Amps (in this case, milliamps(40(in amps it's 0.04))) So, it would be like this:

R=V/I

R=9/0.04

R=220Ω

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STEP 3: BONUS

Here is a cool thing i seen on you tube.

You can make your own resistor just by drawing a rectangle on paper!

This is true, and you can do it too!(lol nice slogan huh?)

Just draw a really, REALLY dark rectangle on a piece of paper about two centimetres long(with a HB2 pencil). Then take a nine volt batery with a battery clip, hook the red wire(+) to the longer lead of an led(+) and touch the shorter lead of the led(-) to one end of the rectangle, and the black wire of the clip(-) to the other end of the rectangle.

The led should light up. Also, what's even cooler is, the closer the black wire and the led, the brighter

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