A Tumblr page for PhysicsFans & the lovers of Physics
The debate started with the post “Jackie Chan says (in “The Karate Kid“) “There are no bad students, but bad teachers!”
What’s your reflection on this?
The following chain of reactions and responses followed
- Except some students, the other part lies on how efficiently a teacher involves with the students, how deep he goes to make them understand. ”Life and values” are more important than…
In a recent notification
CENTRAL BOARD OF SECONDARY EDUCATION (An Autonomous Organization under the Ministry of Human Resource Development Govt. of India) says:
“Due to administrative reasons, it has been decided to cancel the examination in Physics for All India Senior School Certificate Examination, 2014 held in the centres situated
in the State of Manipur.
It has been decided to conduct…
How was your CBSE/AISSCE 2014 Physics Exam?
Was it easy, difficult or moderate?
Were there any questions outside syllabus?
Were there any confusing questions?
Were there any errors in question paper?Respond now!
Let your voices be heard before finalizing the marking scheme.
Pieces of Cu and Ge are cooled from temperature to 80k what will be the effect ofon their resistance
Copper is a metal and Germanium is a semiconductor.
The resistance of a metal increases with increase in temperature and the resistance of a semiconductor decreases with increase in temperature.
In the question, The temperature is being decreased to 80 K from room temperature.…
In every book its written that if we pull a rope every section of the rope pulls the next section.
But according to 3rd law the section 2 will pull back 1 with equal force.
So there are forces in two directions
But why do u say tension acts away from force?
I have attached a file with 2 doubts.
(N Aditya Dev asked)
CBSE Board Paper Solutions, this is one of the most popular search term among students today. The reason is evident. CBSE Exams started.
Solving previous question papers is undoubtedly one of the easy way to get good marks with least effort, ie, without studying the entire book.
This idea is based on the fact that there are some bare esentials which cannot be avoided by any paper setter.…
Superconductors are supposed to be able to carry current flow without loss. A superconductor loop can generate magnetic fields indefinitely, as long as it remain cool enough to remain superconductors. So it begs to question — Can we use the magnetic flux generated by the superconductor coil to power a motor compressor to cool the superconductor so that it will remain superconductor forever ?
As you know, the word current means flow. An electric current (conduction current) is caused by flow of electrons.
But while considering the continuity of electric current in a circuit with a capacitor as a component, it becomes difficult to explain the continuity as there is no physical medium between the plates of the capacitor for the electrons to flow. But the effect (magnetic) can be felt in…