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Q. A proton moves perpendicularly to a uniform magnetic field at 5.0 107 m/s and exhibits an acceleration of 1.0 1013 m/s2 in the +x-direction when its velocity is in the +z-direction. Determine the magnitude and direction of the field.

Q. A strong lightning bolt transfers about 30 C of electrical charge to the Earth. How many electrons are transferred?

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Category:- Physics
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