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In the figure, the electric field E and the magnetic field B point to x and z directions, respectively, and have constant magnitudes. A positive charge 'q' is released from rest at the origin. Which of the following statement(s) is/are true.

1. The charge will move in the direction of z with constant velocity.
2. The charge will always move on the y-z plane only.
3. The trajectory of the charge will be a circle.
4. The charge will progress in the direction of y.

Correct answer: The charge will progress in the direction of y.

Solution

The charge will progress in the direction of y because the electric field exerts a force on the positive charge, causing it to accelerate in that direction, while the magnetic field does not exert a force in the y direction when the charge is initially at rest.

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