Matt is giving a presentation to his class about transformers. For one example he makes the...

Matt is giving a presentation to his class about transformers. For one example he makes the following analysis: “The ratio of windings in this transformer from the primary circuit to the secondary circuit are 2:25. This makes it a step-up transformer. Since the voltage in the primary circuit is 10.0 V, the voltage in the secondary circuit will be (10.0 V)(25/2) = 125 V. The current in the primary circuit is 4.00 A, so the current in the secondary circuit will be (4.00 A)(25/2) = 50.0 A.” Is Matt’s analysis correct? If not, identify the mistake he made and correct it.

Draw two diagrams showing the direction of current induced in a coil both when a magnet moves toward the coil and when the magnet moves away. Use these to explain Lenz’s law and why the current is in the directions indicated.

thank you

Expert Solution

genius_generous answered 3 years ago

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