Indian Institute of Technology Joint Entrance Exam (IIT-JEE),organized and conducted by IITs attracts the brightest minds of the nation every year and is attended by lakhs of students who aspire to get admission in Engineering and Technology. Getting admitted into the IITs is often considered the height of accomplishment due to high standards of the examination.IITs were first conceived by then prime minister Jawaharlal Nehru in 1950s as part of his vision to promote the growth of science and technology in India.
Phenomenon of superconductivity was first observed by Kamerlingh Onnes in Leiden in 1911 ,3 years after he first liquified helium gas. He observed that electrical resistivity of such as mercury, tin, lead completely disappear i.e., suddenly dropped to zero in a small range of temperature at a critical temperature TC which is the characterstics of the material.
Many materials like carbon can exist in various forms for example it can exist as diamond in solid form and graphite is also one form of carbon and clearly dimond and graphite have different mechanical, thermal, optical and electrical properties. These properties of different forms of carbon can be understood in terms of carbon atoms in the solid structure.
A non inertial Frame of Refrence is the frame of refrence which is having acceleration a. Example Free Falling elevator
Newtons law are valid in inertial frame of refrence only. We cannot apply them as it is in non inertial frame of refrence as it left out the acceleration of the object because of the frame of refrence.
Let me provide simple example to illustrate this.
Net Heat flow at a junction is Zero
Internal Energy does not depend on the path
Internal Energy in a cyclic Process is zero
Workdone is given by the area enclosed by the process on the PV diagram
Always make sure you Heat(Q) ,Internal Energy(U) and Work(W) with correct sign in equation
When a PN junction is reversed biased it allows very small current to flow through it. This current is due to the movement of minority charge carriers and it is almost independent of the voltage applied.
If reverse bias is made too high, the current through PN junction increases abruptly and the voltage at which this phenomenon occurs is called breakdown voltage .
Here are the list of Physics books for CSIR-NET/JRF and GATE which will be very helpful. It is hard for a person to collect these many books so i would advise you to go through these books while doing your masters in physics and make yourself appropriate notes for further reference and study. Classical mechanics 1. Classical Mechanics by Herbert Goldstein 2. Classical mechanics by Gupta … Continue reading Physics books for CSIR-NET/JRF and GATE
You all know physicsgoeasy is my blog and i had already given a good amount of notes on basic electrostatics in this blog so I did not intend to write further on basic electrostatics topics. For detailed basic notes on electristatics you can visit my website physicscstalyst.com and links to my blog postes of electrostatic related material are given below. Learn Physics for IITJEE , … Continue reading Electrostatics