Question

Is there anybody there that can help me out

Answer 1

with what bing?

Answer 2

toroid that has 10 radius with current 0.080 A and twist N = 100
what is the scalarvalue of the magnetic field

Answer 3

Magnetic field at center of toroid is maximum and it is almost negligible outside toroid.. Magnetic field at center of toroid is given by B= (mu) n I
where mu is permeability of free space
n=N/(2pi R) is number of turns per unit length
I is current through toroid..

Now you can calculate B..

Answer 4

what about the constant 4pi*10^-7

Answer 5

that is mu

Answer 6

If the conductor lies on toroids axes and then leads current, what will be the value of the constant now and what will be the direction

Answer 7

the value of constant is always constant.. And you mentioned direction but i don't understand what direction are you talking about?

Answer 8

This is another question, i mean a If the conductor is moved from the previous position and placed on toroids axes and then leads current, what will be the value of the current now and what will be the direction

Answer 9

Can you use the "Draw" button to give us an idea of the situation you are describing?

Answer 10

Here the demand is that the inner mangnetic field should be zero

Answer 11

the question is actually in norwagean so am trying to translate it in english

Answer 12

Is this what you mean: You want B created by I1 in toroid coil to be cancelled out by I2 in infinite wire going through axis of toroid?

Answer 13

yes

Answer 14

Well, laws of electrodynamics are linear.

ujjwal said that B1 = µo.n.I1

Now find I2 so that B2 created at distance R from the wire equals B1.
You can either use Ampère's theorem or you might have a formula in your book.

Answer 15

If I have guessed your problem right, then the answer should be \(I_{2}=NI_{1}=100\times 0.08=8\:A\)

Answer 16

thanks

Answer 17

Do you have time for another question, just wanna know if my calculations were currect

Answer 18

Go on :)