A uniform electric field exists in the region between two oppositely charged plane parallel plates separated by a distance 5.4 cm. A proton is released from rest at the surface of the positively charged plate. The value of the constant electric field between the plates is 166.8 N/C.

Use:

Mass of a proton= 1.67 × 10-27 kilograms

Charge of a proton = 1.60 × 10-19 C

k = 9 x 109 Nm2 / C2

ε0 = 8.85×10−12 F⋅m−1

1. Calculate the value of the acceleration of the proton then enter the letter corresponding to the correct answer in the box (this entry requires exact match. please enter the letter in lower case and do not enter any spaces, commas or dotts).

powerful computers now, not then

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j