An electron is initially at rest. At time t_1 = 0 It is accelerated upward with

Question

An electron is initially at rest. At time t_1 = 0 It is accelerated upward with an acceleration of a 1 times 10^19 m/s^2 for a very short time (this large acceleration is possible because the electron has a very small mass). We make observations at location A, x = 12 meters from the electron (see the figure). At time t_2 = 2 ns (10^-9 s), what is the magnitude and direction of the electric field at location A due to the electron? magnitude: At what time t_3 does the electric field at location A change? What is the direction of the electric field at location A at time t_3? What is the magnitude of this electric field? A positively charged particle was initially at rest at location A. It is released from rest just after time t_3. Which of the following are true just after time t_3? (Select all that apply.) There is a magnetic force to the right on the positive charge. The electric force on the positive charge is toward the electron. The positive charge begins to move because there b a force on it due to the radiative electric field. The electric force on the positive charge due to the radiative electric field is upward. The positive charge will never be affected by the radiative magnetic field, since the positive charge is always at rest. The radiative magnetic field at location A is out of the page.

Explanation / Answer

here,

when a positively charged particle was initially at rest at location A ,

it is released from rest just after time t3,

-> the electric force on the positive charge is towards the electron

as

opposite charges attracts each other

the electric force on it is not radiative

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