A uniform electric field e is equal to 91 ×10^-6 volt per metre is cre...
**Given information:**
- Electric field strength (e) = 91 × 10^-6 V/m
- Initial velocity of the electron (Vo) = 4 × 10^-3 m/s
- Length of each plate (l) = 1 m
- Mass of electron (m) = 9.1 × 10^-31 kg
- Charge of electron (e) = -1.6 × 10^-19 C
**Calculating the force on the electron:**
The force experienced by a charged particle in an electric field is given by the equation F = qE, where F is the force, q is the charge, and E is the electric field strength.
In this case, the charge of the electron is e = -1.6 × 10^-19 C and the electric field strength is e = 91 × 10^-6 V/m.
Substituting these values into the equation, we can calculate the force on the electron:
F = (-1.6 × 10^-19 C) * (91 × 10^-6 V/m)
F = -1.456 × 10^-24 N
**Calculating the acceleration of the electron:**
The force acting on a particle is related to its acceleration through Newton's second law, F = ma, where F is the force, m is the mass, and a is the acceleration.
In this case, the force on the electron is F = -1.456 × 10^-24 N and the mass of the electron is m = 9.1 × 10^-31 kg.
Substituting these values into the equation, we can calculate the acceleration of the electron:
-1.456 × 10^-24 N = (9.1 × 10^-31 kg) * a
a = -1.596 × 10^6 m/s^2
**Calculating the time taken by the electron to travel between the plates:**
The initial velocity of the electron is Vo = 4 × 10^-3 m/s. The acceleration of the electron is a = -1.596 × 10^6 m/s^2. The distance traveled by the electron between the plates is l = 1 m.
We can use the equation of motion, s = ut + (1/2)at^2, where s is the distance, u is the initial velocity, a is the acceleration, and t is the time.
Substituting the given values into the equation, we can calculate the time taken by the electron to travel between the plates:
1 = (4 × 10^-3 m/s) * t + (1/2) * (-1.596 × 10^6 m/s^2) * t^2
0 = -0.798 × 10^6 m/s^2 * t^2 + 4 × 10^-3 m/s * t - 1
Using the quadratic formula, we can solve for t:
t = (-4 × 10^-3 m/s ± √((4 × 10^-3 m/s)^2 - 4 * (-0.798 × 10^6 m/s^2) * (-1))) / (2 * -0.798 × 10^6 m/s^2)
Simplifying the equation, we get:
t = 8.9 × 10^-
A uniform electric field e is equal to 91 ×10^-6 volt per metre is cre...
The acceleration of the electron is
in the upward direction. The horizontal velocity remains
as there is no acceleration in this direction. Thus, the time taken in crossing the field is:
The upward component of the velocity of the electron as it emerges from the field region is:
The horizontal component of the velocity remains
The angle θ made by the resultant velocity with the original direction is given by:
Thus, the electron deviates by an angle:
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