# What is the Lenz's law?

What is the Lenz's law?

"The induced EMF always opposes the cause producing it" this is the lenz law.
The direction of induced current is such as to oppose the change of current in circuit.

## Related questions

Description : State and explain Lenz's law.

Answer : Lenz’s law: It states that the direction of statically induced emf is such that it always opposes the cause that produces it. In fact, the induced emf produces current, which produces magnetic flux and this magnetic flux opposes the changing magnetic field that is responsible for emf induction.

Description : What is KCL and KVL law?

Answer : Basically KCL and KVL are two laws that are presented by Kirchoff KCL stands for kirchoff, s current law And KVL stands for kirchoff, s voltage law According to KVL:sum of all the voltages in a ... is zero For example v1 +v2+ v3+ v4 =0 According to KCL: Incoming current=outgoing current

Description : Ohm's law formula

Answer : Ohm's law formula

Description : Kirchhoff's Voltage Law

Answer : Kirchhoff's voltage law

Description : Kirchhoff's Current Law

Answer : Kirchhoff's current law

Description : Faraday's law of induced voltage

Answer : Faraday's law of induced voltage

Description : State Faraday's law of electromagnetic induction.

Answer : First Law: - Whenever change in the magnetic flux linked with a coil or conductor, an EMF is induced in it. OR Whenever a conductor cuts magnetic flux, an EMF is induced in conductor.  Second Law: ... of induced EMF is directly proportional to (equal to) the rate of change of flux linkages.

Description : What is Coulomb's law ?

Answer : Coulomb's Law is the force of repulsion/ attraction between two like/unlike charges of electricity concentrated at two points in an isotropic medium is proportional to the product of their magnitudes and ... square of the distance between them and to the dielectric constant of the medium.

Description : State the first law of illumination

Answer : This law states that the illuminance (E) at any point on a plane perpendicular to the line joining the point and source is inversely proportional to the square of the distance between the source and plane. ... in a given direction.   d - Distance between the source and plane   E - Illuminance

Description : Define Faraday’s first law of electromagnetic induction.

Answer : Faraday’s First Law: Whenever a changing magnetic flux links with a conductor, an emf is induced in that conductor.  OR  When a conductor cuts across magnetic field, an emf is induced in that conductor.

Description : Ohm's law example

Answer : Ohm's law example

Description : State law of Parallelogram of force.

Answer : Law of Parallelogram of force: It states that if two forces acting at and away from point be represented in magnitude direction by the two adjacent sides of parallelogram, then the ... passing through the point of intersection of the two forces represents the resultant in magnitude direction .

Description : State and explain Ohm's law for magnetic circuit.

Answer : Ohm's law for electric circuit is V = I R where V is voltage, I is current, R is Resistance. Ohm's law for magnetic circuit is MMF = Φ X S where MMF is magnetomotive force (NI) ... . Resistance is the opposition to the flow of current while reluctance is the opposition to the flow of magnetic flux.

Answer : Kelvin Planck's law deals with conservation of heat into work.

Description : Kirchhoff's voltage law applies to circuits with?

Answer : Kirchhoff's voltage law applies to circuits with linear, non-linear, active, passive, time varying as wells as time-in-variant elements.

Description : Kirchhoff s law is not applicable to circuits with?

Answer : Kirchhoff's law is not applicable to circuits with distributed parameters.

Description : Kirchhoff s law is applicable to?

Answer : Kirchhoff s law is applicable to both a.c. as well d.c. circuits.

Description : Kirchhoffs voltage law is related to?

Description : Kirchhoffs current law is applicable to only?

Answer : Kirchhoffs current law is applicable to only junction in a network.

Description : According to Kirchhoffs voltage law, the algebraic sum of all IR drops and e.m.f. in any closed loop of a network is always?

Answer : According to Kirchhoffs voltage law, the algebraic sum of all IR drops and e.m.f. in any closed loop of a network is always zero.

Description : Kirchhoff's current law states that?

Answer : Kirchhoff's current law states that Hebraic sum of the currents meeting at the junction is zero.

Description : The condition for the validity under Ohm's law is that?

Answer : The condition for the validity under Ohm's law is that resistance must be uniform.

Description : According to law of triangle of forces?

Answer : According to law of triangle of forces if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium.

Description : I found that by the same process of applying KCL and KVL, the problems of mesh analysis can also be solved. My teacher used KCL and KVL too. So, what's the difference between mesh analysis and Kirchoff's laws?

Description : Lenz's law is an example of the law of conservation of one of the following. Is it conservation of: w) mass x) charge y) momentum z) energy

Description : State Lenz’s law.

Answer : Lenz’s Law: It states that the direction of electromagnetically induced emf is such that it always opposes the main cause of its production. Or It is expressed by equation E = - N (dΦ/dt) volts Where – sign indicate the direction EMF is induced opposite to rate of change of flux.

Description : What is the formula for Watts Law?

Answer : This is the formula for power Watts = Volts2 / Ohms..

Description : State Ohm’s law for electric circuit.

Answer : Ohms law -States that the current flows in a circuit is directly proportional to the applied voltage (V) and inversely the proportional resistance provided with the temperature main constant

Description : Does the linear circuit obey Ohm's law?

Answer : Yes linear circuit obey Ohm's law and nonlinear circuit not satisfied Ohm's law.

Description : Explain Faraday’s second law of electrolysis and give its expression.

Answer : Statement: This law states that, “when the same quantity of electricity is passed through the different electrolyte solutions which are connected is series, the amount of the substance deposited or liberated at the electrodes are directly proportional to their chemical equivalents.”  W1/W2 = E1/E2

Description : State Faraday’s first law of electrolysis.

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.

Description : State Boyle’s law & Charles’s law.

Answer : Boyle’s law: - For fixed mass of a gas, temperature of a gas remaining constant, its pressure is inversely proportional to its volume.  Charles’s Law: For fixed mass of a gas, pressure of a gas remaining constant, its volume is directly proportional to its absolute temperature.

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

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.

Description : State and explain Ohm’s law.

Answer : Ans: Ohm's law: As long as physical conditions (such as dimensions, pressure and temperature) are constant, the potential difference or voltage applied across the conductor is directly proportional to ... V/R where, R = constant of proportionality, called as the resistance of the conductor.

Description : Which law states that induced e.m.f and current always opposes the cause producing them?

Answer : Lenz's law states that induced e.m.f and current always opposes the cause producing them.

Description : The Hartley Law states that

Answer : The Hartley Law states that The maximum rate of information transmission depends on the Channel Bandwidth

Description : Which law is synonymous to the occurrence of diamagnetism?   (a) Ampere’s law (b) Maxwell’s law (c) Coulomb’s law (d) Lenz’s law

Answer : Which law is synonymous to the occurrence of diamagnetism?   (a) Ampere’s law (b) Maxwell’s law (c) Coulomb’s law (d) Lenz’s law

Description : Consider the following statements :  1. Network theorems are not derivable from Kirchhoff's law.  2. To get the . Norton current, one has to short the current source.  3. Thevenin's theorem is suitable for a circuit involving ... /are correct ?  (a) 1, 2 and 3 (b) 1 only (c) 2 only (d) 3 only

Answer : Consider the following statements :  1. Network theorems are not derivable from Kirchhoff's law.  2. To get the . Norton current, one has to short the current source.  3. Thevenin's theorem is suitable for a circuit ... /are correct ?  (a) 1, 2 and 3 (b) 1 only (c) 2 only (d) 3 only

Description : Kirchhoff's current law is applicable to 1. Closed loops in a circuit 2. Junction in a circuit 3. Magnetic circuits Which of the above is/are correct ?  (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

Answer : Kirchhoff's current law is applicable to 1. Closed loops in a circuit 2. Junction in a circuit 3. Magnetic circuits Which of the above is/are correct ?  (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

Description : According to Ohm's law:  (1) The voltage is constant to current (2) The voltage is proportional to current (3) Voltage is inversely proportional to current (4) The voltage is proportional to resistance

Answer : At constant temperature current passing through a conductor is directly proporstional to voltage across a conductor

Description : Ohm’s law is applicable to : (A) Semi-conductors (B) Vacuum tubes (C) Electrolytes (D) Semiconductors and Vacuum tubes

Answer : Ohm's law is not applicable to semi-conductors.

Answer :  Kirchhoff's second law is based on law of conservation of energy.

Description : why ohm's law is not applicable for ac circuit?

Answer : We can use Ohm's law for AC circuit if circuit consists of linear components and devices.

Description : does ohm's law apply to ac circuits?

Answer : Yes it does, but as it is supplied with ac we will have to take impedance in account.

Answer : both ac as well as dc

Description : is Ohms law applicable to vacuum tubes?

Answer : Ohm's law is not applicable to vacuum tubes.

Description : What new law is needed to make the world a better place to live?

Description : What is Digital Forensic? A. Process of using scientific knowledge in analysis and presentation of evidence in court B. The application of computer science and investigative procedures for a legal ... technology in the investigation and establishment of the facts or evidence in a court of law

Answer : B. The application of computer science and investigative procedures for a legal purpose involving the analysis of digital evidence after proper search authority, chain of custody, validation with mathematics, use of validated tools, repeatability, reporting, and possible expert presentation

Description : According to Indian law, what is the minimum age of marriage? a) 16 years for women and 19 years for men b) 18 for women and 21 for men c) 21 for women and men both d) 18 for men and women both

Answer : b) 18 for women and 21 for men

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