Which is true of electromagnetic induction?

Electromagnetic Induction:

A changing magnetic flux can induce a current in a closed loop of wire, even with no power source. One can change magnetic flux by altering any of the following quantities: the strength of the magnetic field, the orientation of the magnetic field, or the area enclosed by the loop of wire.

Which of the following depends electromagnetic induction?

Two important devices depend on electromagnetic induction: electric generators and electric transformers. Both devices play critical roles in producing and regulating the electric current we depend on in our daily lives. Electric generators use electromagnetic induction to change kinetic energy to electrical energy.

Which of the following defines electromagnetic induction?

Electromagnetic Induction is a current produced because of voltage production (electromotive force) due to a changing magnetic field. This either happens when a conductor is placed in a moving magnetic field (when using AC power source) or when a conductor is constantly moving in a stationary magnetic field.

What are the three factors that concern electromagnetic induction?

Electromagnetic induction is when a voltage is created by passing a conductor through a magnetic field.

The size of the voltage can be varied by three factors:
  • The size of the magnetic field. …
  • The active length of the conductor. …
  • The speed at which the conductor passes through the field.

What is the statement of Faraday’s law of electromagnetic induction?

Faraday’s law of electromagnetic induction states that a current is induced in a conductor which is in a changing magnetic field. In accordance with Faraday’s first law, any minute variation in the magnetic field of the coil will result in an emf which is getting induced in the coil.

What causes electromagnetic induction?

Electromagnetic induction occurs when a circuit with an alternating current flowing through it generates current in another circuit simply by being placed nearby. … Fluctuating magnetic fields cause currents to flow in conductors placed within them, which is also known as Faraday’s Law.

What are the factors affecting electromagnetic induction class 10?

The induced emf is affected by the following four factors:
  • The induced e.m.f. is proportional to the number of turns in a coil.
  • The speed at which the conductor moves through the magnetic field.
  • The length of the conductor.
  • The rate at which the conductor cuts the magnetic lines of force.

What are the factors affecting electromagnetic induction by Brainly?

(i) the number of turns in a coil circuit. (ii) the nature of magnet used. (iii) the speed of motion with which magnet is pushed into (or pulled only) the coil. Fleming’s right hand rule is used to determine the direction of induced current.

What is electromagnetic induction class 10th?

Electromagnetic Induction (EMI) : The flow of induced current in a coil when a magnetic field changes in the region of the coil, this phenomenon is called Electromagnetic Induction. Whenever there is a change in the magnetic field in the region of the coil, current flows.

What are the factors on which the strength of induced current depends?

The strength of induced current depends on the strength of the magnetic field, the velocity at which the coil or the magnet is being moved and the length of the conductor which is perpendicular to the direction of the motion and finally the resistance of the conductor.

What is electromagnetic induction class 12th?

The electromagnetic induction is a phenomenon in which an electric field or an electromotive force is induced or created in a conductor by the effect of a changing magnetic field in which the conductor is placed.

What is electromagnetic induction class 8?

Answer: The property due to which a changing magnetic field within a closed conducting coil induces electric cureent in the coil is called electromagnetic induction. The current produced in a closed coil, when magnetic lines of force rapidly change within it, is called the induced current.

Which of the following is the best example of an application of electromagnetic induction?

Explanation: Motors which are basically DC type. And operating a motor in reverse is the generator which a great example of electromagnetic induction.

What are the types of electromagnetic induction?

There are two types of Induction process: (1) Mutual Induction and (2) Self Induction.

What is electromagnetic induction class 10 Brainly?

Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field.

What is electromagnetic induction class 10 Mcq?

What is electromagnetic induction? b. The process of rotating a coil of an electric motor. … The process of generating magnetic field due to a current passing through a coil.