Question 4, chap 129, sect 1. part 1 of 1 10 points A negatively charged particl

Question

Question 4, chap 129, sect 1. part 1 of 1 10 points A negatively charged particle moving parallel to the z-axis enters a magnetic field (pointing out of of the page), as shown in the figure below. z x v y B~ B~ ?q Figure:

Question 4, chap 129, sect 1. part 1 of 1 10 points A negatively charged particle moving parallel to the z-axis enters a magnetic field (pointing out of of the page), as shown in the figure below. z x v y B ~ B ~ ?q Figure: E?? is in the x-direction, E?? is in the y-direction, and E?k is in the z-direction. What is the initial direction of deflection? 1. Fb = +E?? 2. Fb = +E?k 3. Fb = +E?? 4. Fb = ?E?k 5. Fb = ?E?? 6. Fb = ?E?? 7. F ~ = 0 ; no

Explanation / Answer

F = q(V x B)

F = -q ( Vk x Bj ) = - qVB (-i)

F = qVB i

deflection is along i or along +ve x-axis

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