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The study of the presence and flow of electric charge. Charges, currents, fields, potentials.

2 votes

Why the resistance of earth neglected in electrocution

Since we can't read the professor's mind, it is impossible to definitively answer the question "Why did he neglect the resistance of earth?". The most likely answer is that whilst the resistance of t …
Andrew Hicks's user avatar
0 votes

Why does resistance increase with length?

@AndresSalas - The following is a bit of a simplification, but may help you understand. When current flows through a wire, the electron that enters the wire doesn't immediately come out the other e …
Andrew Hicks's user avatar