Consider the video tutorial you just watched. Suppose that we duplicate this experimental setup in an elevator. What will the sp
ring scale read if the elevator is moving upward at constant speed?
1 answer:
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Answer:
Rate of change of magnetic field is
Explanation:
We have given diameter of the circular loop is 13 cm = 0.13 m
So radius of the circular loop
Length of the circular loop
Wire is made up of diameter of 2.6 mm
So radius
Cross sectional area of wire
Resistivity of wire
Resistance of wire
Current is given i = 11 A
So emf
Emf induced in the coil is
Answer:
1) P₁ = -2 D, 2) P₂ = 6 D
Explanation:
for this exercise in geometric optics let's use the equation of the constructor
where f is the focal length, p and q are the distance to the object and the image, respectively
1) to see a distant object it must be at infinity (p = ∞)
q = f₁
2) for an object located at p = 25 cm
We can that in the two expressions we have the distance to the image, this is the distance where it can be seen clearly in general for a normal person is q = 50 cm
we substitute in the equations
1) f₁ = -50 cm
2)
= 0.06
f₂ = 16.67 cm
the expression for the power of the lenses is
P =
where the focal length is in meters
1) P₁ = 1/0.50
P₁ = -2 D
2) P₂ = 1 /0.16667
P₂ = 6 D