When a piece of plastic tape coated with iron oxide that is magnetized more in some parts than others is moved past a small coil of wire, what happens in the coil? What is a practical application of this?
To explain: the changes in coil on changing magnetic field and its practical application.
Answer to Problem 36A
The voltage induces in the coil and the practical example is tape recorder.
Explanation of Solution
Introduction:
When there is a change in the magnetic field, the voltage induces.
The plastic tape coated with iron oxide is magnetized. This magnetism vary from on part to another. Some parts are magnetized more than the others. This change in magnetic field induces the voltage in the coil. It has practical application as the tape recorder work on this concept.
Conclusion:
The overheating of the motor as the more heat energy is developed as all the electrical energy is converted into heat energy when the motor does not rotate.
Chapter 37 Solutions
Conceptual Physics: The High School Physics Program
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