1.

A uniform electric field and a uniform magnetic field are produced, pointed in the same direction. An electron is projected with its velocity pointing in the same direction.

Answer»

The electron will TURN to its RIGHT
The electron will trun to its left
The electron velocity will INCREASE in MAGNITUDE
The electron velocity will decrease in magnitude

Solution :As MOTION of electron is parallel to magnetic field hence force due to the magnetic field is zero . Due to electric field the velocity of negatively charged electron will gradually decrease in magnitude.


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