2. Support

Technical support

Technical support
Tutorials
Downloads

R = U / I

              U = R x I

I = U / R

              P = U x I

With R = Restistance (Ω)

        I = Ampere (A)

        U = Volts (V)

        P = Watts (W)

 

Formula applied in series and used to calculate which resistor is needed to power a 3mm red LED using a 9V battery

P = 20mA x (2v + 2v) = 80 mW

When we put several components in series they will be subjected to the same current, however their voltages are added up. 

Same formula applied to the same two LEDs but this time mounted in parallel

P = (20mA + 20mA) x 2v = 80mW

In a parallel circuit the voltage of the components are equal but their currents are added up

 

Every effort has been made to ensure the accuracy of all information contained herein. e-nitiative shall not be liable for any changes resulting in wrong product description, tax code and/or price. The shown information (specifications, prices, taxes) should be considered as an indication and can be changed at any moment and without any prior notice.
Design and development by E-nitiative
Cookie Policy

Functional cookies

These cookies ensure that the webstore functions properly. Think of keeping track of your language and your products in your shopping basket, log on with your account, the checkout form, filter search results etc.

Other cookies

We use analytical and tracking cookies to see how we can improve the webstore and how we can adapt content and potential advertisements to your preference.