Honestly you should switch it up to something better cause honestly all depends on how the person was raised or the backround of them
it does not matter if your are a male or female
Answer:
Magnification is approximately 7.71
Explanation:
Magnification is the process of enlarging the apparent size of an object. For two lenses in sequence such as in a microscope, the magnification is determined by the ratio of the focal length of the eyepiece lens to the focal length of the objective lens.
The focal length of a lens is the distance between the center of a lens and the point (focal point) where parallel rays converge after passing through the lens.
= magnification
= focal length of eyepiece lens
= focal length of objective lens
Answer:
Explanation:
1 ) Magnetic field due to a circular coil carrying current
= μ₀I / 2r
I is current , r is radius of the wire , μ₀ = 4π x 10⁻⁷
= 4π x 10⁻⁷ x 15 / (2 x 3.5 x 10⁻²)
= 26.9 x 10⁻⁵ T
2 )
Negative z direction .
The direction of magnetic field due to a circular coil having current is known
with the help of screw rule or right hand thumb rule.
3 )
If we decrease the radius the magnetic field will:__increase _____.
A. Increase.
Magnetic field due to a circular coil carrying current
B = μ₀I / 2 r
Here r is radius of the coil . If radius decreases magnetic field increases.
So magnetic field will increase.
Answer:
The correct option is (C).
Explanation:
Electric current can be direct or alternating.
The direct current flows only in one direction. It is unidirectional.
The alternating current or an C current reverse its direction periodically.
So, the correct statement regarding the alternating current is (c) i.e. Electrons reverse direction periodically.
