State the faraday’s laws of electro magnetic induction.

State the faraday’s laws of electro magnetic induction.
by

1 Answer

Answer :

In 1831 Faraday discovered the production of electric current in electric conductor by converting magnetism. Faraday has mentioned two laws known as faraday’s laws of electro magnetic induction.

First law

Whenever a conductor causes to cut the magnetic lines of force an emf will be induced in that conductor.

Second law 

The quantity of electricity or the value of the emf produced in that conductor is directly proportional to the rate of change of flux linked with that conductor. 
by

Related questions

State Faraday’s first law of electro-magnetic induction.

Description : State Faraday’s first law of electro-magnetic induction.

Last Answer : Whenever a magnetic field linked with a conductor changes, an induced e.m.f is generated in the conductor.

The scientific principle involved in a laser is (a) Newton’s laws of motion (b) Faraday’s laws of induction (c) Motion of a charges particle in an electromagnetic field (d) Amplification by population inversion

Description : The scientific principle involved in a laser is (a) Newton’s laws of motion (b) Faraday’s laws of induction (c) Motion of a charges particle in an electromagnetic field (d) Amplification by population inversion

Last Answer : Ans:(d)

Which one of the following laws best describes the operation of an electric generator? w) Ampere's Law x) Gauss' Law y) Ohm's Law for Conductors z) Faraday's Law of Induction

Description : Which one of the following laws best describes the operation of an electric generator? w) Ampere's Law x) Gauss' Law y) Ohm's Law for Conductors z) Faraday's Law of Induction

Last Answer : ANSWER: Z -- FARADAY'S LAW OF INDUCTION 

What are the Faradays laws of electrolysis?

Description : What are the Faradays laws of electrolysis?

Last Answer : First law The mass ions liberated at an electrode are directly proportional to the quantity of electricity (coulomb Q) which has passed through the electrolyte. That is M∝Q or M∝I ... several electrolyte the masses of the ions liberated are proportional to their respective chemical equivalent. 

Electro Magnetic Induction

Description : Electro Magnetic Induction

Last Answer : Electro Magnetic Induction

State Faraday's second law of electromagnetic induction.

Description : State Faraday's second law of electromagnetic induction.

Last Answer : The Magnitude of the induced e.m.f is directly proportional to the rate of change of magnetic field linking the conductor.

State Faraday's first and second law of electromagnetic induction.

Description : State Faraday's first and second law of electromagnetic induction.

Last Answer : i)Faraday's First Law: Whenever a conductor cuts the magnetic lines of force or is cut by the magnetic lines of force or flux linking with conductor changes, an emf is induced in the conductor.  ... Law: The magnitude of induced emf is directly proportional to the rate of change of flux.

State Faraday’s law of electromagnetic induction.

Description : State Faraday’s law of electromagnetic induction.

Last Answer : Faradays first law: The first law states that whenever the magnetic lines of force (flux lines) linking with a coil or conductor changes, an emf gets induced in the coil or conductor. Such an emf lasts ... to the rate of change of flux linkage where flux linkage = Flux X Number of turns of coil. 

Gauss' law of electricity, Gauss' law of magnetism, Faraday's law of induction, and Amperes' law form the basic equations of electromagnetism. This combination is collectively known as: w) Coulomb's equations x) Volta's equations y) Fermi's equations z) Maxwell's equations

Description : Gauss' law of electricity, Gauss' law of magnetism, Faraday's law of induction, and Amperes' law form the basic equations of electromagnetism. This combination is collectively known as: w) Coulomb's equations x) Volta's equations y) Fermi's equations z) Maxwell's equations

Last Answer : ANSWER: Z -- MAXWELL'S EQUATIONS

Induced electric currents can be explained using which of the following laws? w) Gauss's Law x) Faraday's Law y) Ohm's Law z) Ampere's Law

Description : Induced electric currents can be explained using which of the following laws? w) Gauss's Law x) Faraday's Law y) Ohm's Law z) Ampere's Law

Last Answer : ANSWER: X -- FARADAY'S LAW

The magnetic materials follow which law? a) Faraday’s law b) Ampere law c) Lenz law d) Curie Weiss law

Description : The magnetic materials follow which law? a) Faraday’s law b) Ampere law c) Lenz law d) Curie Weiss law

Last Answer : d) Curie Weiss law

A time varying electric field produces a magnetic field.' This phenomenon is called: (A) Hertz's law (B) Ampere Maxwell's law (C) Faraday's law

Description : A time varying electric field produces a magnetic field.' This phenomenon is called: (A) Hertz's law (B) Ampere Maxwell's law (C) Faraday's law

Last Answer : Answer: Option B

The law that finds application in electrolysis is: a) Faraday's law b) Coulomb's law c) Ohm's law d) Lenz's law

Description : The law that finds application in electrolysis is: a) Faraday's law b) Coulomb's law c) Ohm's law d) Lenz's law

Last Answer : Ans: A

The relative speed between the magnetic fields of stator and rotor under steady state operation is zero for a (A) dc machine. (B) 3 phase induction machine. (C) synchronous machine. (D) single phase induction machine.

Description : The relative speed between the magnetic fields of stator and rotor under steady state operation is zero for a (A) dc machine. (B) 3 phase induction machine. (C) synchronous machine. (D) single phase induction machine.

Last Answer : Ans: all options are correct

The air gap in an induction motor should be checked periodically with a feeler gage to detect ____________. A. rotor contact with the laminations B. changes in armature magnetic strength C. excessive bearing wear D. electrical damage to the rotor

Description : The air gap in an induction motor should be checked periodically with a feeler gage to detect ____________. A. rotor contact with the laminations B. changes in armature magnetic strength C. excessive bearing wear D. electrical damage to the rotor

Last Answer : Answer: C

In a three-phase, squirrel-cage type, induction motor the rotating magnetic field is established by the _____________. A. current induced in the rotor windings B. application of a three-phase voltage supply to the stator windings C. laminated steel core and aluminum conductors in the rotor D. interaction of the magnetic field caused by the induced current in the squirrel-cage bars with the magnetic field of the stator

Description : In a three-phase, squirrel-cage type, induction motor the rotating magnetic field is established by the _____________. A. current induced in the rotor windings B. application of a three-phase voltage ... caused by the induced current in the squirrel-cage bars with the magnetic field of the stator

Last Answer : Answer: B

The basic operating principle of a transformer is attributed to ______________. A. electromagnetic induction B. variance of a conductor in a magnetic field C. mutual reaction D. thermionic emission

Description : The basic operating principle of a transformer is attributed to ______________. A. electromagnetic induction B. variance of a conductor in a magnetic field C. mutual reaction D. thermionic emission

Last Answer : Answer: A

A three-phase, induction-type motor experiences an open in one phase. Which of the listed automatic protective devices will prevent the machine from being damaged? A. Overspeed trip B. Thermal overload relay C. Three-pole safety switch D. Magnetic blowout coil

Description : A three-phase, induction-type motor experiences an open in one phase. Which of the listed automatic protective devices will prevent the machine from being damaged? A. Overspeed trip B. Thermal overload relay C. Three-pole safety switch D. Magnetic blowout coil

Last Answer : Answer: B

What is magnetic locking or cogging effect of induction motor?

Description : What is magnetic locking or cogging effect of induction motor?

Last Answer : In squirrel cage induction motor some times the rotor and stator care teeth or slots are comes face to face or parallel at stationary condition. If we are starting the motor at this condition the motor ... the rotor slot, such that there is no common factor between the rotor slot and stator slots.

In the heating process of the ________type a simple method of temperature control is possible by means of a special alloy which loses its magnetic properties at a particular high temperature and regains them when cooled to a temperature below this value. (A) Indirect induction over (B) core type induction furnace (C) coreless induction furnace (D) high frequency eddy current

Description : In the heating process of the ________type a simple method of temperature control is possible by means of a special alloy which loses its magnetic properties at a particular high temperature and regains ... ) core type induction furnace (C) coreless induction furnace (D) high frequency eddy current

Last Answer : Ans: D Magnetic property of alloy changes with change of the temperature and Heat is produced due to eddy current = i2R and i α f2

Is there a test to prove that an EMF (electro-magnetic field) has damaged human body?

Description : Is there a test to prove that an EMF (electro-magnetic field) has damaged human body?

Last Answer : So you believe that EMF radiation does physiologic damage to the human body? If so, what makes you think this?

Which technology is used in Compact disks? A) Mechanical B) Electrical C) Electro Magnetic D) Laser

Description : Which technology is used in Compact disks? A) Mechanical B) Electrical C) Electro Magnetic D) Laser

Last Answer : Answer : D

Electro magnetic radiation is emitted by (a) X-ray (b) Electrons (c) Ultrasonic (d) Protons

Description : Electro magnetic radiation is emitted by (a) X-ray (b) Electrons (c) Ultrasonic (d) Protons

Last Answer : Ans:(b)

A current carrying conductor is associated with – (1) a magnetic field (2) an electric field (3) an electro-magnetic field (4) an electrostatic field

Description : A current carrying conductor is associated with – (1) a magnetic field (2) an electric field (3) an electro-magnetic field (4) an electrostatic field

Last Answer : (3) an electro-magnetic field Explanation: A current carrying conductor, such as a metal wire, will produce a magnetic field around it because of the motion of charge within the wire itself. This motion produces or sets up a magnetic field around the wire in the form of concentric circles.

Electro-magnetic spectrum range, which is important for radiation varies from __________ microns. (A) 1 to 100 (B) 0.5 to 50 (C) 10 to 100 (D) 100 to 1000

Description : Electro-magnetic spectrum range, which is important for radiation varies from __________ microns. (A) 1 to 100 (B) 0.5 to 50 (C) 10 to 100 (D) 100 to 1000

Last Answer : (B) 0.5 to 50

Which technology is used in Compact disks ? 1) Mechanical 2) Electrical 3) Electro Magnetic 4) Laser

Description : Which technology is used in Compact disks ? 1) Mechanical 2) Electrical 3) Electro Magnetic 4) Laser

Last Answer : 4) Laser

An approximate estimation of total dissolved solids of a given water sample is often made by measuring (a) Electrical conductivity of the water sample (b) Electro-magnetic conductivity of the water sample (c) Sound conductivity of the water sample (d) Thermal conductivity of the water sample

Description : An approximate estimation of total dissolved solids of a given water sample is often made by measuring (a) Electrical conductivity of the water sample (b) Electro-magnetic conductivity of the water sample (c) Sound conductivity of the water sample (d) Thermal conductivity of the water sample

Last Answer : (a) Electrical conductivity of the water sample

The branch of physics that deals with the investigation of wavelengths of electro magnetic radiation emitted or absorbed by atoms is known as a) spectroscopy b) astroscopy c) radioscopy d) stereoscopy

Description : The branch of physics that deals with the investigation of wavelengths of electro magnetic radiation emitted or absorbed by atoms is known as a) spectroscopy b) astroscopy c) radioscopy d) stereoscopy

Last Answer : a) spectroscopy

Which region of the electro-magnetic spectrum will cause sunburns? w) ultraviolet x) infrared y) visible

Description : Which region of the electro-magnetic spectrum will cause sunburns? w) ultraviolet x) infrared y) visible

Last Answer : ANSWER: W -- ULTRAVIOLET

A current carrying conductor is associated with (1) a magnetic field (2) an electric field (3) an electro-magnetic field (4) an electrostatic field

Description : A current carrying conductor is associated with (1) a magnetic field (2) an electric field (3) an electro-magnetic field (4) an electrostatic field

Last Answer : an electro-magnetic field

Explain the electro-magnetic flow meter with neat sketch and write it’s application.

Description : Explain the electro-magnetic flow meter with neat sketch and write it’s application. 

Last Answer : Electromagnetic flow meter: Principle of Operation: 1. The operation of an Electro-magnetic flow meter is based upon Faraday's Law, which states that the voltage induced across any conductor as it ... rates. It can be also used for measurement of flow rate of slurries, greasy materials.

What are different types of principles of operation of electro-mechanical relays?

Description : What are different types of principles of operation of electro-mechanical relays?

Last Answer : Answer: Electro-mechanical relays operate by two principles. Electro-magnetic attraction and electromagnetic induction. In electromagnetic attraction relay plunger is drawn to the solenoid or an ... operation is similar to induction motor. Torque is developed by electromagnetic induction principle

What is meant by electro negativity of SF6 gas?

Description : What is meant by electro negativity of SF6 gas?

Last Answer : SF6 has high affinity for electrons. When a free electron comes and collides with a neutral gas molecule, the electron is absorbed by the neutral gas molecule and negative ion is formed. This is called as electro negativity of SF6 gas.

What are the types of induced electro motive force?

Description : What are the types of induced electro motive force? 

Last Answer : a. Dynamically induced emf. b. Statically induced emf. Statically induced emf can be further divided into two groups. a. Mutually induced emf. b. Self induced emf. 

Who discovered electro magnetism?

Description : Who discovered electro magnetism?

Last Answer : ‘Orsted’ a denish scientist discovered that whenever an electric current passes through a conductor, a magnetic field will be produced around that conductor in concentric circle. In addition to that heat will be produced in that conductor.  

What are the advantages of electro magnetism?

Description : What are the advantages of electro magnetism? 

Last Answer : a. Electro magnets can be magnetised very easily by sending DC through it. b. Changing the direction of the current through the coil can change the polarity of the poles. c. The strength of ... depending upon the need. e. The magnetic strength remains constant as long as the current is constant.

What is electro plating?

Description : What is electro plating?

Last Answer : The process of depositing a metal on the surface of another metal by electrolysis is known as electro plating. Usually the plating material will be silver, chromium etc. 

What is electro-motive force (emf) or voltage?

Description : What is electro-motive force (emf) or voltage?

Last Answer : It is the pressure that moves the electrons to flow in any conductor. It is also known as electromotive force voltage. Its symbol is ‘E’ or ‘V’ and measuring unit is volt measured by voltmeter. 

(a) State and explain Kohlrausch law. (b) How much electricity in terms of Faradays is required to produce 20 g of calcium from molten CaCl2? -Chemistry

Description : (a) State and explain Kohlrausch law. (b) How much electricity in terms of Faradays is required to produce 20 g of calcium from molten CaCl2? -Chemistry

Last Answer : a) Corrosion is an electrochemical phenomenon. At a particular spot of iron j oxidation it takes place and the spot behaves j as anode and the reaction will be: i At anode : 2Fe(s) → 2Fe2+ + 4e- Electrons ... Ca i.e. 40 g of Ca requires electricity = 2F ∴ 20 g of Ca will require electricity = 1F

State Faraday’s second law of electrolysis.

Description : State Faraday’s second law of electrolysis.

Last Answer : “The masses of different substances liberated by the same quantity of electricity are proportional to their chemical equivalents”.

State Faraday’s first law of electrolysis.

Description : State Faraday’s first law of electrolysis.

Last Answer : “The mass of substance deposited or collected at either electrode during electrolysis is proportional to the current and to the time”.

State Faraday’s first law of electrolysis.

Description : State Faraday’s first law of electrolysis. 

Last Answer : Faraday’s first law of electrolysis:- It states that the weight (W) of the substance deposited or liberated at the electrode during electrolysis is directly proportional to the quantity of electricity (Q) that is passed through electrolyte solution.

Define any three laws related to electromagnetic induction. Write use of each law.

Description : Define any three laws related to electromagnetic induction. Write use of each law.

Last Answer : Ans: Faraday's laws of electromagnetic induction:  First law: Whenever a conductor cuts the magnetic flux, an emf is induced in it. OR Whenever a changing magnetic flux links with the ... used for finding the direction of force acting on current carrying conductor when placed in magnetic field.

What is Faraday's first law of electrolysis ?

Description : What is Faraday's first law of electrolysis ?

Last Answer : First formula: In the process of electrolysis, the amount of material deposited on the electrode is proportional to the amount of electricity flowing through the solution or electrolyte.

What are Faraday's formulas ?

Description : What are Faraday's formulas ?

Last Answer : First source: a wire or coil e. M. F is induced when the magnetic flux or line of magnetic force associated with the wire or coil changes. Second law: The amount of induced ... magnetic field , then an electromotive force induced in the conductor is proportional to the rate of occurrence.

What is Michael Faraday's favorite song?

Description : What is Michael Faraday's favorite song?

Last Answer : Need answer

The magnitude of current flowing between two end points of a conductor is proportional to the potential difference between them and is called as: (1) Avogadro's law (2) Rault's law (3) Ohms law (4) Faraday's law

Description : The magnitude of current flowing between two end points of a conductor is proportional to the potential difference between them and is called as: (1) Avogadro's law (2) Rault's law (3) Ohms law (4) Faraday's law

Last Answer : (3) Ohms law Explanation: According to Ohm's Law, the potential difference (V) between two terminals of a current-carrying conductor is directly proportional to the current (I), flowing through it. -For any Study materialContact WhatsApp: 8337932441 Join Telegram- Click here

Which frequency reuse method is less effective because of Faraday’s effect? A. Dual polarization B. Reducing antenna beamwidth C. Zonal rotation D. Spin stabilization

Description : Which frequency reuse method is less effective because of Faraday’s effect? A. Dual polarization B. Reducing antenna beamwidth C. Zonal rotation D. Spin stabilization

Last Answer : A. Dual polarization

Any small element of space in the path of a wave may be considered as a source of secondary wavelet. A. De Morgan’s Principle B. Faraday’s Law C. Huygen’s Principle D. Fresnel’s Law of optics

Description : Any small element of space in the path of a wave may be considered as a source of secondary wavelet. A. De Morgan’s Principle B. Faraday’s Law C. Huygen’s Principle D. Fresnel’s Law of optics

Last Answer : C. Huygen’s Principle

Write the value of Faraday’s constant.

Description : Write the value of Faraday’s constant.

Last Answer : The value of Faraday’s constant is 96,500 coulomb/mole.