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Electrons touches the x axis after every pitch .Distance = p = (vcos∆ )×(2πm)/(Bq)For paraxial electrons ∆ = 0 and q = e Hence p = (2πmv)/(Bq)∆ is the angle on x axis
It can be calculated as the total voltage in the secondary side of the transformer divided by the total inductance imepedence at secondary. And this way it depends on both on the frequency and the...
But magnetic field lines always originate from a pole... And each and every thing which produces magnetic field lines are magnets.. We define magnetic poles for a current carrying circular loop then...
The permissitivity plays here the role in the loop identification. And hence, the diffrence in the flux density of the curves for different magnetic material also distiinguishes the different...
Truely, Magnetic fields are virtual. There is no such kind of fields but the changing of elctric field bring some variations and thus the field then generated is termed as Magnetic field and hence,...
given:- B is the magneetic field and X is the angle of dip then horizontal magnetic field is BcosX length of rod is L velocity of the rod falling is (2gH) ½ induced emf is = Blv = Bcosx.L.(2gH) 1/2
dear dhananjay first of all u need to calculate the effective length after bending of wire . effective length = 2R = 2l / pi magnetic moment = p * 2R where p is the pole strength . HOPE IT CLEARS NOW...
Magnetic force =q(V*B) The magnetic field produced by the vertical wire will be into the page on the right hand side and it will be out of the page on the left hand side of the page . lets assume that...
Apply work energy theorem. Apart from friction no other force will do work since they are perpendicular to particle`s motion. And change in KE is -0.5mv^2. And this is the answer.
dear akhil acc to oersted , a steady electric current creates a magnetic field around it , and it do uses in all kind of motor and electric generator . in electric generator , its used to convert...
DEAR ADITYA when u will cut a bar magnet along its length , then the small piece also act like a magnet again , but the magnatic strength will decrease in the 2 nd case . along its length , – it only...
I think the answer is D. Replace the loop by bar magnet of same magnetic moment. //Not accepting less than 100 chars.
See in this question you have to just calculate the change in potential energy which is given by (-M.B) where M is magnetic moment of the coil and B is the magnetic field. This is valid only when the...
According to me, by changing to circular shape the current carrying loop is maximizing it`s magnetic moment which then minimize it`s potential energy I.e., -M.B the higher the M more negative is the...
@ md kindly refer to the below formula B= u0 i / 4 pie * R ( sin phi 1 + sin phi 2 ) where R is the perpendicular distance from side and phi 1 and phi2 are positive value of angle made at center of...
Ceramics are used for coating magnetic tapes in a cassette player or for building memory stores in a modern computer. Ceramics are specislly treated barium ion oxides and are also called ferrites.
That force would be exerted on bar magnet which has the nearer pole to horshoe magnet . Hence depends upon the micro distances and magnetic field power of both bar magnet and hoeshoe magnet in order...
From Bio-Savart’s Law, dB = u*i*(dl x r)/4pi*r^2 where u = 4pi x 10^-7 From the construction magnetic field at a distance x from the circular coil to a point P, dB = uidlsinthetha/4pi*(x^2 + r^2) On...
Thats pretty darn wrongYou iitian? M a class 10 student and i can get it rightLol at you! No no u aint an iitian you faker, big time faker. The ans is 9 mu nought I/ 2 pi a
Sunspots formed due to the interaction of the plasma with the magnetic field. This magnetic gfoeld hets wraped as due to equator’s material travels faster than at poles. And hence, the sunspots are...
Bar Magnet has two poles . One end North pole and the other end south pole. The magnetic waves originates from North pole and ends to South pole. Any iron piece or magnetic material comes in the field...
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