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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.
The lead alloy: Most of the soldering in the electronic industry is carried out using tin lead alloy. Pure lead metals at 327 0 C, whereas tin melts at 232 0 C and the mixture of
compostion of two simple harmonic motion
(i)Most of the alpha-particles pass by the foil straight away undeflected. (ii)Some of them are deflected by small angles. (iii)A few alpha-particles (1 in 1000) are deflecte
i want to do a project of physics the topic is electo magnetic induction. i want d topic and procedure
How is magnification in scanning electron microscope controlled? Magnification in scanning electron microscope: Magnification into a SEM (scanning electron microscope) can b
Explain header and stretcher. Header A brick laid with its length perpendicular to the direction of wall is known as a header. A course of bricks in which all the bricks a
Assume a new planet was discovered to orbit the Sun with a period 5 times that of Pluto. Using the data, measure the average distance from the Sun for this new planet.
True or False 1)Clothes always get static cling when dried in a clothes dryer 2) Dust stick to all charged objects 3) Static Electricity always stays in one place and never move
Lenz's law (H.F. Lenz; 1835): An induced electric current always pass in such direction that it opposes the change generating it.
Centrifugal force with a liquid Get a small goldfish bowl or glass jar. Fasten a wire securely about the neck. To this wire attach a bale. Join the cord from the drill chuck to
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