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An electric motor is a device which converts electrical energy into mechanical energy.
Principle of electric motor: An electric motor essentially consists of a rectangular coil ABCD. Let the coil be connected to a battery cell B. Imagine the plane of the coil to be in plane of the paper.
With the help of Ampere's Right hand rule we imagine that the magnetic lines of force in all the four arms AB, BC, CD and AD will be directed perpendicular and into the plane of the paper. This makes the front face of the coil a south pole and the back face a north pole. Rectangular coil behaves as a magnet.
When such a current carrying coil is placed in an external fixed magnetic field it will be subjected to magnetic force according to Fleming's left hand rule.
The force rotates the coil imparting it a kinetic energy. If by some arrangement the coil is made to rotate continuously, electrical energy is converted to mechanical energy. Such an arrangement is called an electric motor.
Which gates are known as universal gates? Draw the circuit symbols of n-p-n and p-n-p transistor.
michelson interferometer principle
Proton was discovered by: (1)Chadwick (2)Thomson (3)Goldstein (4)Bohr Ans: (3)Goldstein
IMPULSE: When a force acts on a body for a very short time, the product of the force and the time for which the force acts, is called the impulse or impulse of force".
Two tiny objects with equal charges of 71.0 µC are placed at two corners of a square with sides of 0.340 m, as shown. How far above and to the left of the corner of the square labe
It is the property of changing readily from a solid or liquid to a vapour. It is the speed that a chemical compounds evaporates. Higher volatility indicates faster evaporation.
The magnetic field of Earth resembles the field of a bar magnet. The north pole of a compass needle, used for navigation, generally points toward the geographic north pole.
What are spatial effects? Representations of shooting stars, nebulas, comets and others, made with frequently thousands of individual animation illuminator and fibers.
A monkey of mass m climbs a rope slung over a light frictionless pulley.The opposite end of the rope is tied to a block of Mass M lying on a smooth horizontal plane.Find the accele
Can you please, explain what is ''n'' in this equation: Q=ne?
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