Answer:
B_2 / B_1 = 0.5 , Half of magnetic field at distance d.
Explanation:
Given:
- A current carrying conductor produces a magnetic field = B_1 @ r = d
- A current carrying conductor produces a magnetic field = B_2 @ r = 2*d
Find:
Compare the the magnetic Field at two points r = d and r = 2*d:
Solution:
- The magnetic Field of long current carrying wires are expressed as follows:
B = u_o*I / 2*pi*r
Where,
B = Magnetic Field
I = The current in the conductor
r = The radial distance from the center of the wire.
u_o = Permittivity of free space (constant)
- Now compute B_1 and B_2:
B_1 = B = u_o*I / 2*pi*d
B_2 = B = u_o*I / 4*pi*d
- Take a ratio of B_2 to B_1:
B_2 / B_1 = (u_o*I / 4pi*d) * ( 2*pi*d/u_o*I)
B_2 / B_1 = 0.5
- Hence, the magnetic field at distance 2d is half of the magnetic field at distance d.
Answer:
Explanation:
Only force in the direction of motion does work
The force acts in the x direction
The x change of position was 6 m
W = Fd = 12(6) = 72 J
Answer:
<h2><em><u>Is that question from class 10?</u></em></h2>
Answer:
NaCl,AgF
Explanation:
Chemical equations show the reactants and products, as well as other factors such as energy changes, catalysts, and so on. With these equations, an arrow is used to indicate that a chemical reaction has taken place. In general terms, a chemical reaction follows this format:
Reactants→Products
So the reactants of the given reaction are NaCl,AgF
To solve this problem we will apply the concepts related to angular resolution based on wavelength and the slit width at this case of the cat's pupils. This relationship is given as,
Here,
= Wavelength
a = Slit width
Therefore the angular resolution is