1 / 7

Resistance and Ohm’s Law

Resistance and Ohm’s Law. Resistance and Ohm’s Law. The ability of materials to oppose the flow of electric charges is known as resistance . The circuit component that models this property is a resistor , as shown below. The value of the resistor is R. The Unit of R is Ohms ( Ω).

almira
Download Presentation

Resistance and Ohm’s Law

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Resistance and Ohm’s Law ECE 201

  2. Resistance and Ohm’s Law • The ability of materials to oppose the flow of electric charges is known as resistance. The circuit component that models this property is a resistor, as shown below. The value of the resistor is R. • The Unit of R is Ohms (Ω). ECE 201

  3. Ohm’s Law • Georg Simon Ohm experimentally observed that there is a direct relationship between the current flowing through a material and the voltage difference across it’s terminals. • This is expressed as Ohm’s Law, the most common form of which is v = iR. ECE 201

  4. Reference choices for v, i ECE 201

  5. Alternate forms of Ohm’s Law ECE 201

  6. Conductance, G • Conductance is the reciprocal of resistance • Symbol is G • Unit is S (siemens) • Alternate unit is mho (ohm spelled backwards) • Used to simplify calculations ECE 201

  7. Power in a resistor ECE 201

More Related