What are the braided donuts called?
Twisted doughnuts are yeast donuts or sticks of pastry made from wheat flour or glutinous rice flour, deep-fried in oil. In China, they are known as mahua (麻花); in Korea, they are known as kkwabaegi (꽈배기); in the Philippines, they are known as shakoy and pilipit.
What does toroid mean?
1 : a surface generated by a closed plane curve rotated about a line that lies in the same plane as the curve but does not intersect it. 2 : a body whose surface has the form of a toroid.
What is toroid formula for toroid?
Number of turns in a toroidal coil – formula The inner radius of the torus is A, the radius of the wire is r, and the maximum number of loops is n. The equation that relates A, r, and n is: sin(nπ)=A−rr in radians. n=arcsinA−rrπ
What is a ferrite toroid?
A ferrite toroid is a product that is able to provide high magnetic efficiency, and this is due to the fact that no air can get through the cross-sectional area. A ferrite toroid has permeability the ranges from 5,000 J material to 10,000 W materials.
What is toroid using ampere?
A solenoid is bent in such a way its ends are joined together to form a closed ring shape, is called a toroid. A solenoid is bent in such a way its ends are joined together to form a closed ring shape, is called a toroid which is shown in Figure 3.47.
How do you count turns in toroid?
You can calculate the number of turns by giving the external diameter of the conductor and asuming that the number of turns is given by the amount of turns that you can have due to the internal circumference of the toroid or, you can simply state the number of turns of the toroid in the respective section.
What is an ideal toroid?
The ideal toroid is one in which coils are circular.
Why is there no magnetic field outside a toroid?
You will observe that current that flows at outer circumference and inner circumference of toroid are in opposite direction to each other. Therefore, current enclosed by Amperian loop is zero. Thus, magnetic field outside the toroid is zero.
Why magnetic field just outside a solenoid is zero?
The magnetic field lines exist outside the solenoid, but the number of field lines per unit area outside the solenoid is much less compared to the number of lines per unit area inside the solenoid. Hence the magnetic field outside is so feeble that it is considered to be practically zero.
Why magnetic field is not zero outside the solenoid?
The magnetic field lines follow the longitudinal path of the solenoid inside, so they must go in the opposite direction outside of the solenoid so that the lines can form a loop. In order for the total number of field lines to be conserved, the field outside must go to zero as the solenoid gets longer.