A positive charge enters a region of perpendicular electric and magnetic fields as shown in the figure, travelling with speed V0 directed horizontally to the right. Initially the charge moves through the region shown with no deflection and emerges through the hole in screen S2. If we now want the charge to hit below the hole in the screen S2 we should

Engineering

Physics

Magnet and Magnetic Dipole Moment

Question

A positive charge enters a region of perpendicular electric and magnetic fields as shown in the figure, travelling with speed V₀ directed horizontally to the right. Initially the charge moves through the region shown with no deflection and emerges through the hole in screen S₂. If we now want the charge to hit below the hole in the screen S₂ we should

Decrease its speed below V₀ or increase the magnitude of E

Increase its speed above V₀ or increase the magnitude of E

Increase its speed above V₀ or decrease the magnitude of E

Decrease its speed below V₀ or decrease the magnitude of E

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We have to decrease the upward force Bθ or increase the downward force

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