Explain working principle of d.c motor, Physics

Assignment Help:

Working Principle of D.C Motor

A) An electric motor is a machine which changes electrical energy into mechanical energy.

B) When a current carrying conductor is placed in a magnetic field, it experience a mechanical force whose way is given by " Flemings Left hand rule" & magnitude is given by F= B.I.L Newton

C) When field magnets are excited and armature conductors are supplied with current from supply main, they experience a force tending to move the armature. Armature conductors under N-Pole are supposed to carry current in (crosses) and those under S-Pole to carry current out (dots).

 


Related Discussions:- Explain working principle of d.c motor

Determine the power absorbed by the circuit, A 20 Ω non-reactive resistor i...

A 20 Ω non-reactive resistor is connected in series with a coil of inductance 80mH and negligible resistance. The combined circuit is connected to a 200V, 50Hz supply. Calcula

Determine the number of turns of the coil, A mild steel closed magnetic cir...

A mild steel closed magnetic circuit has a mean length of 75mm and a cross-sectional area of 320.2mm 2 . A current of 0.40 a flows in a coil wound uniformly around the circuit

Determine the kva of the alternator, A 400V, 3-phase star linked alternator...

A 400V, 3-phase star linked alternator supplies a delta-connected load, each phase of which has a resistance of 30 and inductive reactance 40. Calculate (a) the current sup

Who first theoretically predicted the existence of positron, Who first theo...

Who first theoretically predicted the existence of the positron, a positively charged electron?  He received the Nobel Prize in Physics in 1933. Ans: (Paul Adrien M

The nucleus of helium contains, The nucleus of helium contains : (1)Four...

The nucleus of helium contains : (1)Four protons (2)Four neutrons (3)Two neutrons and two protons (4)Four protons and two electrons Ans: (3)Two neutrons and two prot

Can you explain single slit diffraction, Can you explain in single slit dif...

Can you explain in single slit diffraction intensity of 1 st secondary maximum is less than that of principal maximum by how many times?

To find current, Determine the unknown values in the following ta : ( s...

Determine the unknown values in the following ta : ( solve problems to find current, voltage, resistance  or power using ohm's law )

Motion of a swing, Motion of a swing Periodic Motion :  Motion that re...

Motion of a swing Periodic Motion :  Motion that repeats itself in equal intervals of time is known as periodic motion.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd