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5/30 MCQs for:
Electric fields

Two charged objects attract each other with a certain force. If the charges on both objects are doubled with no change in separation, the force between them:

Is it possible to have a zero electric field value between a negative and positive charge along the line joining the two charges?
Three identical charges of 3.0 µC are placed at the vertices of an equilateral triangle which measures 30 cm on a side. What is the magnitude of the electrostatic force which acts on any one of the charges?
Two point charges, separated by 1.5 cm, have charge values of 2.0 and -4.0 µC, respectively. What is the magnitude of the electric force between them?

Two point charges each have a value of 3.0 C and are separated by a distance of 4.0 m. What is the electric field at a point midway between the two charges?