No force acts on the charge fired through a magnetic field when the angle between it's velocity and magnetic field is (A) π (B) π÷2 (C) 3π÷4 (D) π÷4
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F= qvBsin@
if @=π then sinπ=0
hence F=0
hence correct answer is (A)
if @=π then sinπ=0
hence F=0
hence correct answer is (A)
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