Answer:
1). It is a volt meter.
2).i mean this one depends on whatever you see on it
3).You use one to test and measure electric potential difference between two points in an electric circuit
Step-by-step explanation:
I hope you get a fat A
1. Don't know.
2. I've noticed that the cord has end points that can produce energy.
3. We use this tool in the picture to jump cars or add energy that something needs.
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