(a) What is the force per meter on a lightning bolt at the equator that carries 20,000...
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(a) What is the force per meter on a lightning bolt at the equator that carries 20,000 A perpendicular to the Earth's 3.00 x 10-5-T field?
(b) What is the direction of the force if the current is straight up and the Earth's field direction is due north, parallel to the ground?
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