Question

what does the negative sign indicate in lenz's law​

Answer 1

Answer:

The 'minus' sign used in Lenz's Law simply indicates that the induced emf and the change in magnetic flux have opposite signs.

Answer 2

The negative sign in Lenz's law indicates that the flow of current opposes the change in flux.

Explanation:

Lenz's Law :

• Lenz's Law states that the change in magnetic flux is opposed by the current and magnetic field produced by the emf.

                                      $\mathcal{E} = - \ \frac{\partial \Phi_{\mathbf{B}}}{\partial \text{t}}$

                            $\mathcal{E} \Rightarrow \text{Electromagnetic Force}$

                            $\Phi_{\mathbf{B}} \Rightarrow \text{Magnetic Flux}$

• From the law itself it is cleared that the magnetic flux is opposed by the electric current and magnetic field.
• The current will always flows to oppose the change in flux.
• So the negative sign is used to show that current opposes the change in flux.
• Lenz's law find application in many ways . It is used to analyze how the magnetic energy is stored in an inductor.

To Learn More

1) What is lenz law.Explain me

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2) Lenz's law is based on which conservation law?

A. Charge  B. Mass  C. Momentum  D. Energy

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