HOME – CBSE & NEET PHYSICS

 

INTRODUCTION

 

The term ‘banking of roads’ refers to an engineering approach that allows vehicles to drive in a circular path.To reduce sliding and accidents, the exterior edge of the road is raised above the level of the inner edge.Banking of roads is used to plan and build safe and efficient highways, motorways, and other roadways.

 

The slope’s purpose is to create centripetal force, which lets the vehicle to safely handle turns at high speeds.Roads that are correctly banked lower the chance of accidents, reduce vehicle wear and tear, and increase traffic flow.To guarantee that roads are safe and efficient for all sorts of vehicles, this strategy demands careful design and implementation.

 

BANKING OF ROAD

 

To abstain from sliding, the external edge of the road is raised over the level of the inward edge.Centripetal force, which is acting towards the focal point of the circle is extremely fundamental for the vehicle to go along the roundabout track.

 

Centripetal Force:

 

IN THE EVENT THAT THE CENTRIPETAL FORCE IS PROVIDED BY FRICTION ONLY

 

 

IN THE EVENT THAT THE CENTRIPETAL FORCE IS PROVIDED BY BANKING OF ROADS ONLY

 

IN THE EVENT THAT THE CENTRIPETAL FORCE IS PROVIDED BY BOTH FRICTION AND BANKING OF ROADS

 

Consider the vehicle goes along a round tracks which is harsh and banked.In this case, both the friction and normal reaction contribute towards the centripetal force. Three forces that might follow up on the vehicle are

 

• The first is the force which is the weight (mg) of the vehicle acting vertically downwards.
• The subsequent force is the typical (Normal) reaction(N) which is perpenicular to the road and
• The third force is the frictional force and the course wherein the frictional force acts relies upon the speed of the vehicle.

 

 

AT THE POINT WHEN THE VEHICLE IS AT REST

 

 

AT THE POINT WHEN THE VEHICLE MOVING WITH A SMALL SPEED

 

 

 

AT THE POINT WHEN THE VEHICLE MOVING WITH A LARGE SPEED

 

 

 

AT THE POINT MAXIMUM VELOCITY FOR THE VEHICLE

 

 

CONCLUSION

 

Banking of road is needed at the turning of a road so that to choose the greatest possible speed of the vehicle, in order to stay away from skidding.and additionally the security of the vehicle moving. Did you at any point really take a look at the most extreme conceivable speed of your vehicle on a banked road?

 

MOTIONAL EMF, INDUCED CURRENT & POWER USED

 

INTRODUCTION

 

When a conductor moves through a magnetic field, it generates an electric field. This electric field can then cause the conductor to conduct current, which produces power.The fundamental ideas in the study of electromagnetism that have a wide variety of real-world applications are motional emf and induced current.Applications include transformers, sensors, eddy current brakes, magnetic levitation, electric motors, generators, and electric motors.These ideas are fundamental to the design and optimisation of a variety of magnetic devices that result in effective and sustainable energy solutions.The principles of motional emf, induced current, and power usage will be discussed in this article.

 

MOTIONAL EMF

 

The emf actuated across the closures of a conductor because of its movement in an attractive magnetic field is called motional emf.

 

DESCRIPTION

 

Conductor PQ of length L is allowed to continue on a U-molded leading rails.(Here the slidable conductor PQ is moved outwards with a speed v).When the conductor moved outwards the space of the rectangular circle increments and consequently the attractive transition connected with the shut circle increments. Thus the magnetic flux linked with the closed-loop increases.

 

An emf is set up across the conductor PQ due to which an initiated current streams in the anticlokwise course (as displayed in the image).According to Faraday’s law of electromagnetic induction the emf incited is – BLv

 

MAGNETIC FLUX LINKED WITH THE CLOSED-LOOP

 

MOTIONAL EMF -INDUCED EMF

 

MOTIONAL EMF – INDUCED CURRENT

 

LENZ’S LAW

 

Lenz’s law expresses that,  » The direction of the actuated current in a circuit is with the end goal that it goes against the reason which produces it ».

 

FORMULA FOR THE POWER USED

 

RIGHT HAND PALM RULE

 

 

FLEMING’S RIGHT HAND RULE

 

 

CONCLUSION

 

In the study of electromagnetism, it is essential to understand terms like motional emf, induced current, and power utilised. These ideas are crucial for the creation, use, and optimisation of several electromagnetic devices.We may create more sustainable and effective energy solutions, such as renewable energy sources, by comprehending these ideas.The study of motional emf, induced current, and power utilised as a used as an essential field of research for the future as the demand for efficient and dependable electromagnetic devices will continue to develop.