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Refer to the image below and state how the magnetic field pattern indicates regions where the magnetic field is stronger outside the magnet? What happens to the magnetic field when the current in the circuit is reversed?
Answer:
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The strength of the magnetic field is stronger at places where the magnetic field lines are crowded. From the figure, it can be concluded that the strength of the magnetic field is strongest near the poles and it reduces as we move away from the poles.
If the direction of current is reversed, the direction of the magnetic field also reverses.
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