Arrange them in the increasing order of power use : mobile phones . Man -made satellites car battery .

Explanation

To arrange the items in increasing order of power use, we will analyze the power consumption of each item: mobile phones, car batteries, and man-made satellites.

### Step-by-Step Solution:

1. **Identify Power Consumption of Each Item**:
- **Mobile Phones**: Mobile phones have a relatively low power consumption. They typically operate on batteries with a capacity measured in milliampere-hours (mAh), which means they use less power compared to larger devices.
- **Car Batteries**: Car batteries are designed to provide a significant amount of power to start the engine and run electrical systems in a vehicle. They have a higher capacity than mobile phone batteries, indicating they consume more power.
- **Man-Made Satellites**: Man-made satellites require a substantial amount of power to operate their instruments, communication systems, and other functionalities. They use solar panels and batteries to sustain their operations in space, which means they consume the most power among the three.
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