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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.
What is spontaneous emission? Explain in brief. Spontaneous emission: a. This is the process by that a light source as like an atom, molecule, nano-crystal or nucleus into a
Q. What do the negative sign tell you about the image? A single lens is utilized to form an image of an actual physical object. You compute the image position i and find that
Gravitational field can also be shown by lines of force. This is same in several ways as that of electric lines of forces. With one dissimilarity, electric charges are negative and
TIME OF FLIGHT: "It is the total time for which the projectile remains in air". As, the body goes up and comes back to similar level, so it does not cover vertical distance,
The weightless simply supported beam below has a VDL of P61kN/m, a point load of P62 kN and a UDL of P63 kN/m as shown. Determine the vertical reaction force at A the maximum bend
The energy needed to ionize an atom is known as ionization energy. It is the energy needed to make the electron jump from the present orbit to the infinite orbit.
The species, which accepts the electrons, are known as Electrophiles (or) Electrophilic reagents. When the atom (or) group of atoms there in the organic compound is replaced by
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Charging by induction Charging by induction - object charged by second object without touching - objects have opposite charge
alkaline battery
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