1 / 8

The Emf Induced Across A Moving Straight Conductor

The Emf Induced Across A Moving Straight Conductor. The Straight Conductor. The straight conductor can be thought of as a a single turn coil stretched out. The emf generated by a single turn coil is:. Where n=1. Remembering.

lee-griffin
Download Presentation

The Emf Induced Across A Moving Straight Conductor

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. The Emf Induced Across A Moving Straight Conductor

  2. The Straight Conductor • The straight conductor can be thought of as a a single turn coil stretched out

  3. The emf generated by a single turn coil is: Where n=1 Remembering A stationary straight conductor does not enclose any area but as it moves it sweeps out an area each second

  4. A=l x x Length l Distance moved perpendicular to the field (x)

  5. In a uniform field B does not change and the length of the conductor stays the same so we can write Where B is the flux density l is the length of the conductor perpindicular to the field v is its velocity

  6. Example 1 • An aeroplane with wingspan 20.5m travels south to north at 310ms-1 a region where the vertical component of the Earth magnetic field is 3.0 x 10-5T. What is the emf generated between the wingtips?

  7. Example 2 • A patient is pushed into an 3.2T MRI scanner at 1ms-1. The patient has a 5cm tungsten pin through the bone of one leg at 900 to the field lines during this process. • What is the emf generated between the ends of the pin? • What would happen if the pin was made of steel?

  8. Example 3 • A 2m scaffolding pole falls from a tall building. It falls horizontally pointing East to West for 2 seconds. • What is the average velocity of the falling pole? • What is the average emf generated between the ends of the pole as it falls. (Horizontal component of the Earth field 5.4 x 10-5T, Vertical Component of the Earth field 3.4 x 10-4 T)

More Related