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Electric field lines from positive charges point radially , and point radially for negative charges.

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Solution

Electric field lines from positive charges point radially outwards, indicating that the force exerted by a positive charge on other charges in its vicinity is repulsive. This means that if you place a positive charge near another positive charge, the second charge will experience a force pushing it away from the first charge. This is represented by field lines pointing away from the positive charge.

On the other hand, electric field lines for negative charges point radially inwards, indicating that the force exerted by a negative charge on other charges in its vicinity is attractive. This means that if you place a positive charge near a negative charge, the positive charge will experience a force pulling it towards the negative charge. This is represented by field lines pointing towards the negative charge.

In summary, electric field lines are used to represent the direction and strength of the electric field around a charge. They point away from positive charges and towards negative charges, representing the direction of the force that a positive test charge would experience if placed in the field.

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