Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain the Lenz Law
An induced current always flows in a direction so that its electromagnetic field opposes the change in magnetic flux producing it. This is embodied in the negative sign on the right side of Faraday's Law. If this were not true, if the induced current could be in the same direction as the change in flux causing it, then we would have a system which would make the flux bigger and bigger with no end in sight - this is not likely to happen if energy is conserved.
The magnet moved into the coil, the induced current in the coil has to make the electromagnet of the coil repel the magnet being moved towards it. So, if the coil shown is wound counter- clockwise when viewed from the right side, the positive induced current would go counterclockwise in the circuit to create an electromagnet, which has a magnetic field opposite the one in the permanent magnet--so it will repel the permanent magnet.
Try example of the magnet moved out of the coil. Which direction is the induced current in the circuit?
Answer - No peeking until you have tried on your own! Now that you have given it a try, check your answer against this. The magnet is being pulled out of the coil so that the electromagnet caused by the induced current must be in the direction that attracts the permanent magnet. This means that the induced current must flow from the left to the right side of the solenoid, and the right hand curls from the back to the front of the solenoid to make an electromagnet with its magnetic field pointing to the right, the direction of your right thumb. The induced current flows clockwise in the circuit.
Question: Which one of the subsequent is true of electric potential but isn't true of an electric field? Answer: The electric field acquaintances a vector with empt
Write down the condition for the construction of good auditoria. Illustrate the reflection of waves at closed and open ends.
a) For the 30days beginning July 15 find a list of moon rise times for Australia, Brisbane. From these data make a table and calculate the period of the moon in its orbit arou
Questions: Regard as two charged particles at a separation of 4 cm. Particle #1 has a charge of +2 micro-coulombs. Particle #2 has a charge of +16 micro-coulombs. How does the
There are five types of modulus of elasticity (i) YOUNG'S MODULUS OF ELASTICITY (Y (ii) BULK MODULUS OF ELASTICITY (K) (iii) COMPRESSIBILITY (iv) MODULUS OF RIGIDITY
STATOR: It is made up of a number of stampings which are slotted to be given windings. The stator carries 3φ windings and is fed from 3φ supply. It will be for a exact number of
the average speed of an object over a given time duration is 6 m/s. If it travels first half of the duration with a constant speed 4 m/s, its speed during the next half duration is
E lectrons have very much smaller mass than that of ions, so they respond more rapidly to a changing electric field. For electric field that oscillates at extremely high frequencie
#question how i write a assignment about it..
How is absorption occurred in fibre material? Absorption is associated to the fibre material. It is caused by three diverse mechanisms, which are: a. Absorption by atomic de
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd