The current whose magnitude changes with time and direction reverses
periodically, is called alternating current.
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What is Alternating Current - Physics - IIT JEE PMT
Best Coaching Class Notes by admin (#1) 335 days ago (http://www.youtube.com)
Work, Power and Energy - Physics - IIT PMT
Best Coaching Class Notes by admin (#1) 335 days ago (http://www.youtube.com)
We all know that, work done = Force × displacement in the direction of force. It is a scalar quantity and is said to be done when force acting on a body produces displacement in it. An object having a capability to do work is said to possess energy.
Reflection of Light - Physics - IIT JEE
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Reflection of a light means light waves are neither transmitted nor absorbed but are deflected from the surface of the medium back into the same medium. Pls note that they get back to the SAME medium. Virtual image forms when rays of light do not actually meet, but appear to meet when produced backwards. A virtual image cannot be obtained on
the screen.
the screen.
Work, Energy and Conservation of Energy and Collisions
Best Coaching Class Notes by admin (#1) 335 days ago (http://www.youtube.com)
Energy exists in present nature in several like kinetic energy, potential energy, heat energy, chemical energy etc. The sum of the kinetic and potential energies of an object is called its mechanical energy. The change of one form of energy into another is called transformation
of energy.
of energy.
Semiconductors, Physics, IIT JEE, PMT
Best Coaching Class Notes by admin (#1) 335 days ago (http://www.youtube.com)
Properties of intrinsic semiconductors -
1. The pure semiconductors in which the electrical conductivity is totally governed by the electrons excited from the valence band to the conduction band
2. no impurity atoms are added to increase their conductivity.
Their conductivity is called intrinsic conductivity
1. The pure semiconductors in which the electrical conductivity is totally governed by the electrons excited from the valence band to the conduction band
2. no impurity atoms are added to increase their conductivity.
Their conductivity is called intrinsic conductivity
Circular motion - Physics - MCH Free Coaching notes
Best Coaching Class Notes by admin (#1) 386 days ago (Article)
Circular Motion refers to the movement of an object along the circumference / boundary of a circle. The centrifugal /centripetal forces apply to this object moving at a constant pace and keep the object from moving out of this defined circular trajectory.
Unit Dimensions - Physics - IIT-PMT
Best Coaching Class Notes by admin (#1) 378 days ago (Article)
Units and dimensions can be understood as the denomination used for expressing the measure of various items so that everyone can understand them in same manner and there is no confusion.For Ex: you can measure your height using various items - your hand, your arm length, a 6 inch ruler or even your notebook. however each of these units of measurement will give you a certain number like 20 hands,
What is Acceleration - Physics - IIT JEE
Best Coaching Class Notes by admin (#1) 378 days ago (Article)
FREE Coaching for IIT_JEE Physics by www.MyCoachingHub.com:
Acceleration is the rate of change of velocity with time.When the velocity of an object changes it is said to be accelerating. Opposite of Acceleration is deceleration. An important thing to remember is that SPeed, velocity and acceleration are all different.
Acceleration is the rate of change of velocity with time.When the velocity of an object changes it is said to be accelerating. Opposite of Acceleration is deceleration. An important thing to remember is that SPeed, velocity and acceleration are all different.
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