The current in the coil is 297 A
Explanation:
The magnetic field of a circular coil carrying a current is given by
where
is the vacuum permeability
N is the number of turns in the coil
I is the current in the coil
R is the radius of the coil
For the coil in this problem, we have:
R = 20 cm = 0.20 m
N = 15
Solving the equation for I, we find the current in the coil:
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Answer:
F = 0N
Explanation:
The force between two charges is given by
where r is the distance between the charges and K is the Coulomb's constant
(k=8-89*10^9Nm^2/C^2)
The force in the first charge is only the sum of the forces due to the other charges. Hence we have
Ft=0N
Hope this helps!!
Answer:
The distance that you marginally able to discern that there are two headlights rather than a single light source is 6.084 km
Explanation:
Given:
d = distance = 0.679 m
λ = wavelength of the light = 537 nm = 537x10⁻⁹m
dp = pupil diameter = 4.81 mm = 0.00481 m
Question: What distance, in kilometers, are you marginally able to discern that there are two headlights rather than a single light source, dx = ?
For the separation of the peak from the central maximum it is:
In this case, the two small sources of the headlights have the same angle as the images that form inside the eye