Calculate the capacitance of a system that stores 2.0 x 10^-10c of charge at 100.0 v. use c=q/v. a. 2.0 x 10^-12 f b. 2.0 x 10^-8 f c. 5.0 x 10^11 f d. 5.0 x 10^7 f

2 x 10⁻¹²F

Explanation:

Capacitance is defined as the ration of charge (q) on either plates to the potential difference V between them.

                        C =

Where  q is the charge on the plates

             V is the potential difference

From the given parameters:

Charge on plate, q = 2.0 x 10⁻¹⁰C

Potential difference across the plate = 100V

Unknown parameter:

Capacitance of the system = ? = C

Solution

        Capacitance = 2.0 x 10⁻¹⁰/100 = 2 x 10⁻¹²F

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.