Question

Which is more likely to interfere with compass readings, AC current in your refrigerator or DC current when you start your car? Explain.

a) AC current in your refrigerator is more likely to interfere because it produces a continuously changing magnetic field.

b) DC current when you start your car is more likely to interfere because it produces a constant magnetic field.

c) Both AC and DC currents equally interfere with compass readings.

d) Neither AC nor DC currents interfere with compass readings.

Answer 1

AC current in the refrigerator is more likely to interfere with compass readings due to its continuously changing magnetic field.

Step-by-step explanation:

The AC current in your refrigerator is more likely to interfere with compass readings compared to the DC current when you start your car. AC current in the refrigerator is more likely to interfere with compass readings due to its continuously changing magnetic field.

This is because AC current produces a continuously changing magnetic field, which can cause the compass needle to continuously deflect and make it difficult to get an accurate reading.

On the other hand, DC current produces a constant magnetic field, which may cause some interference but is less likely to affect the compass readings compared to the continuously changing magnetic field produced by AC current.