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Electric Motor:
A device, which converts electric energy into mechanical energy is known as Electric Motor.
Factors on which the speed of Rotation of Motor Depends:
The speed of rotation of motor depends on the following factors.
1. Magnitude of current passing by the motor.
2. Strength of magnetic field.
3. Number of turns in the coil of the motor.
4. Permeability of its armature.
Hoop conjecture (K.S. Thorne, 1972): The conjecture (as still unproven, though there is substantial evidence to hold up it) that a nonspherically compressed, nonspherical obje
Q. Illustrate how do you find the refractive index of a liquid by using total internal reflection? Answer:- Using Snell's law n (1) = (n (2) x sin angle (2)) / sin angl
#quest. Imagine a small observer is positioned in front of the cork in your picture above. As the cork approaches, the observer measures the wavelength of the waves passing by. How
Ampere's Law is a relation among cause and effect. When Ampere's law is write in the form below on which side of the equation is the cause and on which side of the equation is the
A conductor moves with a velocity of 20m/s at an angle of (a) 90 ? (b) 45 ? (c) 30 ? , to a magnetic field produced among two square-faced poles of side length 2.5cm. If the
Determine an expression for the current in the ring jumping ring demonstration, an electromagnet provides magnetic field of B=0.2 cos 377t tesla over a circle of radius 1.2cm
describe the construction and working of michelson interformeter?
An electron and a proton are moving at the similar speed in circular paths in the similar uniform magnetic field. The radius of the path of the proton is one of the following.
It is the product of either change in an electric dipole with the distance separating them.
What is nucleus? It is the type of an atom where whole mass of the atom is supposes to be concentrated. Or it is the central part of an atom which have proton and
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