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1) a) A point charge 10 C is located at (1,0,0) and another charge of 40...

1) a) A point charge 10 C is located at (1,0,0) and another charge of 40 C is located at (10,0,0). Find a point on x-axis where voltage due to these two charges is zero. If a positive charge is brought to this point from space, how much work is done.

b) A point charge -10 C is located at (1,0,0) and another charge of -40 C is located at (10,0,0). Find a point on x-axis where voltage due to these two charges is zero. If a positive charge is brought to this point from space, how much work is done.

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