Here’s the classification of the devices based on the forces at work:
- A door latch on a kitchen cabinet - Magnetic force is used.
- Two socks stuck together coming out of the dryer - Electric force is used.
- A directional compass - Magnetic force is used.
- An air filter that traps dust and ion particles - Electric force is used.
So, the pairs are:
- Magnetic force is used: A door latch on a kitchen cabinet, A directional compass
- Electric force is used: Two socks stuck together coming out of the dryer, An air filter that traps dust and ion particles