I'm new to electronics and i would like to know what's the main difference between a circuit with no connection to ground, and another circuit with a ground connection.
I read about it in the first chapter (DC) of this book. I can't understand things like this:
I mean: In the second image, How could exist a circuit without ground? What implies that ?
I thought ground connection was a safety measure, whose main objective was to receive the current that otherwise a person would recive by touching the circuit.
Please note that i'm an absolute beginner in this. Thank you.
P.D.: I have found another doubt, please answer this question if you think it's adecuate (I don't know if this is an "all engineer" forum and it's inadecuate to post this stupid doubt here)
The last doubt is this: How could the current pass accross the tree and the person? I think that all the space between the tree and the person, including all the ground is a more resistive path than just flowing normally across the resistance.
I read about it in the first chapter (DC) of this book. I can't understand things like this:
I mean: In the second image, How could exist a circuit without ground? What implies that ?
I thought ground connection was a safety measure, whose main objective was to receive the current that otherwise a person would recive by touching the circuit.
Please note that i'm an absolute beginner in this. Thank you.
P.D.: I have found another doubt, please answer this question if you think it's adecuate (I don't know if this is an "all engineer" forum and it's inadecuate to post this stupid doubt here)
The last doubt is this: How could the current pass accross the tree and the person? I think that all the space between the tree and the person, including all the ground is a more resistive path than just flowing normally across the resistance.
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