
1. A proto n with velocity v 8i 6j+5k {10 m/s) enters a Magnetic Field of B-3i j+ 4k (mT and an electric field
OR
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OR
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1. A proto n with velocity v 8i 6j+5k {10 m/s) enters a Magnetic Field of B-3i j+ 4k (mT and an electric field
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