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FARADAYS LAW:
When the magnetic flux through the coil is made to vary, an emf is induced in the coil. The magnitude of the induced emf is proportional to the rate of change of flux.
Hence, E ∝ dΦ/dt where dΦ = Change in flux/dt =time taken to change
The emf is also dependent on the number of turns on the coil (N), the greater the number of turns on the coil, the greater emf. Hence, we may write:
E ∝ N dΦ/dt Volts
What is about Capacitor Capacitor: Two conducting surfaces divided by an insulating layer. It's a device capable of storing energy and charge. Capacitance= Charge on condu
Explain the term 'resistivity' and write its S. I . unit. Derive the expression for the resistivity of a conductor in terms of number density of free electrons and relaxation time.
# Soru ..
why does rain water boils faster than fresh water
Mercury: Atomic number 80 Symbol Hg
A child in danger of drowning in a river is being carried downstream by a current that has a speed of 2.75km/hr. The child is 0.620km from shore and 0.755km upstream of a boat land
A tunning fork produces 4 beats per second with another tunning fork of frequency 256 Hz. The first one is now loaded with a little wax and the beat frequency is found to enhance t
APPLICATIONS OF NEWTON'S LAWS - II 1. As the body moves through the body it displaces the fluid. It has to exert a force on the fluid to push it out of the path. By the Newto
Write two characteristic features of nuclear force which differentiate it from the Coulomb force.
Q. Give any three utilizes of secondary cells. i) The secondary cells are rechargeable. ii) They have extremely low internal resistance. iii) They are able to deliver a
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