18. Another One The current is parallel to the magnetic field, so no force results.
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23. The DC Motor http://www.walter-fendt.de/ph11e/electricmotor.htm http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=912.0
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27. Electromagnetic Induction Example Conductor (normally wire) v The “positive charges” move up and the negative charges move down. This generates a voltage difference across the wire. + -
28. Electromagnetic Induction Example Calculate the current in the circuit. The “positive charges” moved anticlockwise in the animation. 10 Ω + + + + +