Final answer:
The AC current in a refrigerator is more likely to interfere with compass readings compared to the DC current when starting a car, due to its fluctuating 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. This is because the AC current in your refrigerator produces a fluctuating magnetic field, which can cause the compass needle to constantly change its direction. On the other hand, the DC current in your car produces a relatively stable magnetic field, which has less effect on the compass needle.