Question:
What is Lenz’s law?
What is Lenz’s law?
Show Hint
Lenz’s law is a consequence of the principle of conservation of energy in electromagnetic induction.
Updated On: Mar 4, 2025
Hide Solution
Verified By Collegedunia
Solution and Explanation
Lenz’s law states that the direction of the induced current is such that it opposes the change in magnetic flux that produced it.
When the magnetic flux linked with a circuit changes, an electromotive force (EMF) is induced, and the induced current opposes this change.
When the magnetic flux linked with a circuit changes, an electromotive force (EMF) is induced, and the induced current opposes this change.
Was this answer helpful?
0
0
Top Questions on KCL/ KVL in AC Circuits
- Plot a graph to show the variation of reactance of the element with the frequency of the applied voltage.
- CBSE CLASS XII - 2025
- Physics
- KCL/ KVL in AC Circuits
- An ac source of voltage \( V = V_0 \sin \omega t \) is connected to a circuit element \( X \). It is observed that the current flowing through \( X \) varies as \( I = I_0 \sin\left(\omega t - \frac{\pi}{2}\right) \).
(a) Identify the element \( X \) and write the expression for its reactance.- CBSE CLASS XII - 2025
- Physics
- KCL/ KVL in AC Circuits
- A capacitor and an inductor are connected in series across an ac source of voltage of variable frequency. The frequency is increased continuously. The nature of the circuit before and after the resonance will be:
- CBSE CLASS XII - 2025
- Physics
- KCL/ KVL in AC Circuits
- A series LCR circuit is connected to an alternating source of emf \( E \). The current amplitude at resonance frequency is \( I_0 \). If the value of resistance \( R \) becomes twice of its initial value, then amplitude of current at resonance will be:
- JEE Main - 2025
- Physics
- KCL/ KVL in AC Circuits
- Two long straight thin wires AB and CD have linear charge densities \( 10 \, \text{mC/m} \) and \( -20 \, \text{mC/m} \), respectively. They are kept parallel to each other at a distance of 1 m. Find the magnitude and direction of the net electric field at a point midway between them.
- CBSE CLASS XII - 2024
- Physics
- KCL/ KVL in AC Circuits
View More Questions
Questions Asked in UP Board XII exam
- Change any one of the following into indirect speech:
Sachin said to his senior, "What should I do, Sir?"- UP Board XII - 2025
- Direct And Indirect Speech
Translate the following passage into English: to be translated
Translate the following into English:
- UP Board XII - 2025
- Literature
Translate the following passage into English:
- Read the following extract carefully and answer the questions that follow:
Perhaps the Earth can teach us
As when everything seems dead
And later proves to be alive.
Now I'll count up to twelve
And you keep quiet and I will go.
View More Questions