1 / 10

Electricity and Magnetism: Ac vs DC

Electricity and Magnetism: Ac vs DC. Mr D. Patterson. Outcomes. distinguish between direct and alternating currents and potentials, and apply Ohm’s law this will include applying the relationship :. DC. DC is an acronym for d irect c urrent

dinh
Download Presentation

Electricity and Magnetism: Ac vs DC

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. Electricity and Magnetism:Ac vs DC Mr D. Patterson

  2. Outcomes • distinguish between direct and alternating currents and potentials, and apply Ohm’s law this will include applying the relationship:

  3. DC • DC is an acronym for direct current • A direct current is formed when charges flow in only one direction under the influence of an EMF

  4. AC • AC is an acronym for alternating current • An alternating current is formed when charges repeatedly change direction as they flow. This is formed by an EMF which alternates in polarity

  5. The EMF source determines the current

  6. Ohm’s law • Ohm’s law defines the relationship between voltage, current and resistance. • This can be applied to both DC and AC circuits

  7. Ohm’s Law: DC What is the current leaving the battery? 100 Ω 12 V 300 Ω 150 Ω

  8. Ohm’s Law: AC What is the current leaving the power source? This question is not as straight forward as both voltage and current vary with time. 100 Ω 300 Ω 150 Ω

  9. RMS values

  10. Ohm’s Law: AC What is the current leaving the power source? 100 Ω 300 Ω 150 Ω

More Related