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!
Define the Magnets
Magnets work according to rules similar to electric charges. All magnets have two poles, north (actually north-seeking) and south poles. Like poles repel and unlike poles attract. If you break a magnet in two, you get two magnets, each with a north and south pole. Try it yourself - but not with your brother's favorite magnet.
Modern theories of magnetism explain magnetic materials as materials in which the magnetic domains in the material are aligned. Magnetic domains are each about an area of about 10 m by 10 m or 1020 atoms or molecules of the material. The more consistently these domains line up, the stronger the magnetic field of the material. This helps us explain why dropping or heating magnets can weaken them. Dropping a magnet can realign its domains. Kinetic theory explains that as a material is heated up, the atoms gain more vibration energy, which can also randomize the alignment of a material's magnetic domains.
Magnetic materials are ones that are attracted to a magnet such as iron, nickel and steel. Some of these materials can be temporarily magnetized by contact with a strong magnet. Nonmagnetic materials are ones not affected by a magnet such as glass, wool, aluminum or brass.
how much power is radiated by a tungsten sphere of radius 16cm at a temperature of 25 degrees Celsius emissivity is 0.35
what is the function and uses of bread board
A coil of resistance 1.5k Ω and 0.25H inductance is connected in parallel with a variable capacitance across a 10V, 8kHz supply. Calculate (a) the capacitance of the capacitor
Q. W hat will be effect on Newton's rings if; (i) A little oil (µ = 1.65) is introduced between the lens (µ - 1.5) and the glass plate (µ = 1.75). (ii) A Pla
Two similar simple pendulums each of length ‘l' and mass ‘m' are coupled by a spring of force constant ‘k'. Write down the expression for the normal mode frequencies of the coupled
What is the definition of fringes
Q. What do you mean by Time Dilation? To an observer a moving clock always appears to run slower. The time interval between two events occurring at a given point in space in a
Q. Illustrate what is meant by 4th dimension? Answer:- When a reference is utilized to four-dimensional co-ordinates it is possible that what is referred to is the three s
What makes a good common end? The capacity to hold the fibers always and flushes, lack of adhesives, absence of packing losses and optical polish.
Advantages of D.C. transmission of power 1. It needs only two conductors as compared to three for a.c. transmission. 2. There is not an inductance, capacitance, phase displ
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