Consider the diagram at the shown. A magnetic field, B , points downwards on the

Question

Consider the diagram at the shown. A magnetic field, B, points downwards on the page. A positive charge, +q, moves to the right through the field. What is the direction of the force on the charge due to the magnetic field?

The answer is not d. Please give a full explanation for your answer.

Consider the diagram at the shown. A magnetic field, B, points downwards on the page. A positive charge, +q, moves to the right through the field. What is the direction of the force on the charge due to the magnetic field?

Explanation / Answer

magnetic force F = B*q*V sin(theta)

since theta = 90 the magnetic force F = B*q*V

in case of direction, we can use the right hand rul ein which all the three fingers are perpendicular to each other.

the index finger points the direction of the magnetic field and the thumb in the direction of the velocity then the the centre finger shows the direction of the magnetic force.

using that,

the direction of the forcewill be into the paper.

so option ' d '

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