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!
Materials with 'hard' magnetic B/H characteristics often show a strong residual magnetism. This makes them suitable for making permanent magnets. If the ring material were magnetised, then the magnetised material itself will create a flux in the ring. No current carrying coil will be required.
For a permanent magnet, flux is produced by the alignment of magnetised domains within the material itself. (c.f earlier notes relating to residual magnetism in B/H curve). In this case, the flux exists without the need for a coil, i.e. N.I = 0. Hence applying Ampere's Law results in:
Hence eqn 1 and the B/H curve must be simultaneously satisfied and to give the flux density and magnetic field strength in the magnetic material (and hence also the air gap)
from equation (1) Bc/Hc=-Lc/Lgµ0
which is slope of a straight line. The flux density and magnetic field in the magnetic circuit is given by the point at which eqn (1) cuts the B/H curve. Permanent magnets are widely used in transducers:- loud speakers, measuring meters, D.C. motors etc.
Explain BOUND instructions in 8086 family with example and their effect on flag. BOUND: The BOUND instruction, that has two operands, compares a register along with two word
'Electric drives' is a term used to describe DC and AC electric motors that provide continuous rotarmotion. They are often controlled by 'electronic drivesystems' designed to contr
Explain the Limiting the Spectrum This low-pass filter is known an anti-aliasing filter. These filters are originated at the input to most applications. Since they are required
Explain the Construction of Synchronous Machines? Basically all synchronous machines require a DC excited field winding in order to produce magnetic flux. For majority of machi
Q. Give the Shockley's equation for the transfer characteristics of JFET's? Where ID is the drain current and VGS is the voltage across gate and source. The squared term o
Memory to Register This instruction is used to copy the contents of a memory locations whose address is specified by the HL register pair to any register. Before using th
Q. Explain the conditions under which an RC circuit behaves as Differentiator Differentiator is a circuit in which the output voltage is directly proportional to the derivative
Q. Explain, with the help of structure, the working of UJT? List its applications One of the oddest semiconductor devices in use is the unijunction transistor (UJT). As its nam
I need help designing a BJT amplifier with that meets the following parameters: voltage gain greater than 300, Ic(Vce=0)=2uA, Vcc=20V.
In a CDMA system, the signal is spread over a large bandwidth by multiplying the transmitted symbol by a sequence of short pulses, also called chips. The
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