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a 0.2g ball hangs from a thread in a vertical electric field of 3 Newton per coulomb directed upwords the tension in the thread is 4 Newton meter then the charge on the ball is what

a 0.2g ball hangs from a thread in a vertical electric field of 3 Newton per coulomb directed upwords the tension in the thread is 4 Newton meter then the charge on the ball is what

Grade:12

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