1. In the figure, a magnet is shown falling through a ring of wire. Which surfac
ID: 2242057 • Letter: 1
Question
1. In the figure, a magnet is shown falling through a ring of wire. Which surface of the magnet is its North Pole? (i.e., Is the North pole the top surface or the bottom surface?) How do you know?
2. You have an ideal transformer made up of a 400-turn primary coil and an 800-turn secondary coil. If you apply an rms AC voltage of 2.00V to the input, what will your rms output voltage be?
3. You have an ideal transformer made up of a 400-turn primary coil and an 800-turn secondary coil. If you apply a DC voltage of 2.00V to the input, what will your output voltage be?
In the figure, a magnet is shown falling through a ring of wire. Which surface of the magnet is its North Pole? (i.e., Is the North pole the top surface or the bottom surface?) How do you know? You have an ideal transformer made up of a 400-turn primary coil and an 800-turn secondary coil. If you apply an rms AC voltage of 2.00V to the input, what will your rms output voltage be? You have an ideal transformer made up of a 400-turn primary coil and an 800-turn secondary coil. If you apply a DC voltage of 2.00V to the input, what will your output voltage be?Explanation / Answer
a) down, Magnetic lines arise at north pole
b) Vi/Vo = Ni/No
Solve, Vo = 4V
c) same 4 V
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