Class 12 Physics Mechanics Magnetic Force Moment And Torque



A region has uniform electric and magnetic fields along the positive An electron is fired from the origin at an angle with the x-axis. It will
(i) move along a helical path of increasing pitch
(ii) move along a helical path of decreasing pitch initially
(iii) return to the plane at some time
(iv) come to rest momentarily at some position
(a)
(i), (ii)
(b)
(ii), (iv)
(c)
(ii), (iii)
(d)
(i), (iv)
Correct answer: (c) 

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Similar topics
mechanical properties of fluids
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mechanical properties of fluids
laws of motion
oscillations
systems of particles and rotational motion
energy and power