The moving charge in the wire causes the compass to deflect; this is because?
The deflection of a compass by a moving charge in a wire raises an interesting question. Why does this occur?
a. The movement of charges creates a magnetic field.
b. The energy associated with the charges exerts a force on the compass.
c. The flow of electrons generates heat in the wire, which then affects the compass's position.
2 Answers
Jan 24, 2025
a.)
+ and – attract each other, therefore there is a flow of electrons from the – end to the + end. Magnet fields are caused if there is a misbalance between + and – charge. If you rub a plastic stick on a fur (use your cat – works perfectly) and then hold it close to a thin water stream from the water tap, it will make the water move toward the stick. That is because the stick carries a negative charge and water is a dipole (2 positive atoms, one negative). So that is the same principle as in magnet fields.
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