The correct answer is C. Back e.m.f. of rotor is more than the applied voltage.
Regenerative braking is a type of braking that converts the kinetic energy of a moving vehicle into electrical energy, which can then be stored in a battery or used to power other electrical devices. This type of braking is often used in electric vehicles, as it allows them to travel further on a single charge.
Regenerative braking works by using the electric motor to generate electricity when the vehicle is slowing down. The electricity is then stored in a battery or used to power other electrical devices. This type of braking is more efficient than traditional braking methods, such as friction brakes, as it does not generate heat.
The amount of electricity that can be generated by regenerative braking depends on the speed of the vehicle and the amount of braking force that is applied. The faster the vehicle is moving, the more electricity that can be generated. The more braking force that is applied, the more electricity that can be generated.
Regenerative braking is a very efficient way to slow down a vehicle. It can also help to extend the life of the vehicle’s brakes. However, it is important to note that regenerative braking cannot completely stop a vehicle. It is still necessary to use the vehicle’s brakes to come to a complete stop.
Here is a brief explanation of each option:
- Option A: Back e.m.f. is less than the applied voltage. This is not the correct answer, as regenerative braking requires that the back e.m.f. be greater than the applied voltage.
- Option B: Back e.m.f. is equal to the applied voltage. This is also not the correct answer, as regenerative braking requires that the back e.m.f. be greater than the applied voltage.
- Option C: Back e.m.f. of rotor is more than the applied voltage. This is the correct answer, as regenerative braking requires that the back e.m.f. be greater than the applied voltage.
- Option D: None of the above. This is not the correct answer, as option C is the only option that is correct.