Answer:
The direction of magnetic field produced by a current carrying wire is given by the right hand thumb rule. If the thumb points in the direction of current the fingers curl along the direction of magnetic field.
further, The red end of the compass needle points in the direction of external magnetic field. As the red end of the needle is pointing away from us, the external magnetic field at its location should also be directed away from us. Using the right hand thumb rule, we can see that this is only possible if the current in the wire is flowing upwards.
Explanation:
Answer:
It would crack.
Explanation: The pressure from dropping it would crush the eggshell therefore breaking the egg.
<span>Any object that is a magnet attracts is a magnetic force.</span>
Answer:
The fraction of the maximum intensity a distance y 5 0.600 cm away from the central maximum is 0.97.
Explanation:
d = 0.180 mm = 1.8 x 10⁻⁴ m
L = 80 cm = 0.8 m
λ = 656.3 nm = 6.563 x 10⁻⁷ m
y = 0.6 cm = 6 x 10⁻³ m
we know that the equation of the intensity for two slits interference equation is
I = 
cos²(πdy/λL)
where
I = intensity
= maximum intensity
d = distance of two slits
y = the distance of the interference with the central
L = the distance of screen and the slits
λ = wavelength
so,
I = cos²(πdy/λL)
I/ = cos²(πdy/λL)
= cos²[π (1.8 x 10⁻⁴) (6 x 10⁻³)/(6.563 x 10⁻⁷) (0.8 )]
= 0.97
