Physics · Electric field: electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in a uniform electric field
An electron enters an electric field with its velocity in the direction of the e
An electron enters an electric field with its velocity in the direction of the electric lines of field then:
- A. the path of the electron will be a circle
- B. the path of the electron will be a parabola
- C. the velocity of the electron will decrease just after entry
- D. the velocity of the electron will increase just after entry
Step-by-step solution
The electron has negative charge. The electric field exerts a force opposite to the field direction. Since the electron's initial velocity is along the field, the force is opposite to velocity, causing deceleration. Thus, velocity decreases immediately after entry.
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