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 circuit impedance, An alternating voltage given by v=100sin24...

An alternating voltage given by v=100sin240t volts is applied across a coil of resistance 32 and inductance 100mH. Verify (a) the circuit impedance, (b) the current flowing,

Liquid in Glass thermometer, Advantage and disadvantage of liquid in Glass ...

Advantage and disadvantage of liquid in Glass thermometer

Calculate speed of sound, The engine on a motorcycle hums at 85 Hz. If...

The engine on a motorcycle hums at 85 Hz. If the motorcycle travels toward a resting observer at a velocity of 29.6 m/s, what frequency does the observer hear? Use 343 m/s

No.of electrons in outermost orbt element of atomic number, Number of elect...

Number of electrons in the outermost orbit of the element of atomic number 15 is: (1) 1        (2) 3        (3) 5        (4) 7 Ans: 5

Calculate the intensity along y axis, As shown in the figure below, a sourc...

As shown in the figure below, a source at S is sending out a spherical wave: E 1 =(A ×D/r) cos( wt-2πr/ λ) ; where r is the distance to source S. In addition, there is anoth

Define the term multi-mode fibre shortly, Define the term multi-mode fibre ...

Define the term multi-mode fibre shortly. Multi-mode fibre: This type of fibre permits more than one mode to travel by this. As this has to permit more number of modes to tr

Electrostatics, Can the whole charge of a body is transfer to another body

Can the whole charge of a body is transfer to another body

SIMPLE HARMONIC MOTION., WHAT IS COMPOSITION OF SIMPLE HARMONIC MOTION AND ...

WHAT IS COMPOSITION OF SIMPLE HARMONIC MOTION AND WHAT IS THE NUMERICAL SOLUTION OF TWO S.H.M OCCURRING IN THE SAME DIRECTION ?

Describe diffrent principle of rays, Q. Describe diffrent principle of rays...

Q. Describe diffrent principle of rays? Principle Ray I : The easy one it hits the lens smack dab in the middle as well as passes straight on through. Principle Ray II : P

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