Let us reject some answers. AM and FM radio waves do not interfere. Am are an orders of magnitude larger than FM waves. FM waves belong to microwaves, a subcategory of radiowaves while AM does not. Similarly, AM and TV have not the same, because TV uses a subset of the frequencies used in FM. The correct answe is that CB radios and submarine communication happen at the same wavelengths/frequencies, namely low frequency radiowaves.
Answer:
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Answer:
Explanation:
The magnetic moment of the coil M = current x area of loop
= I x L x L
M = L² I .
Magnetic field = B
Torque = M x B
= MB sinθ where θ is angle between M and B . Direction of M is perpendicular to face of loop
Torque = MB sin90
= MB
= L² I B .
Number of rulings per centimeter for the grating 4.5 x 10^3 grooves/cm
Given:
wavelength of light = 635.00 nm
angle of first order = 38.0∘
To Find:
Length of slits marked on grafting
Solution: Grafting and budding are horticultural techniques used to join parts from two or more plants so that they appear to grow as a single plant
We use the grating equation dsinθ = mλ
d = mλ/sinθ
d = 1 x 635x10^-7 m/sin 38.0∘
d = 2189.6 x 10^-7 m
Thus the grating gauge is
1/d = 0.00045 x 10^7 = 4.5 x 10^3 grooves/cm
So, number of rulings per centimeter for the grating 4.5 x 10^3 grooves/cm
Learn more about Wavelength here:
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Answer
Integral EdA = Q/εo =C*Vc(t)/εo = 3.5e-12*21/εo = 4.74 V∙m <----- A)
Vc(t) = 21(1-e^-t/RC) because an uncharged capacitor is modeled as a short.
ic(t) = (21/120)e^-t/RC -----> ic(0) = 21/120 = 0.175A <----- B)
Q(0.5ns) = CVc(0.5ns) = 2e-12*21*(1-e^-t/RC) = 30.7pC
30.7pC/εo = 3.47 V∙m <----- C)
ic(0.5ns) = 29.7ma <----- D)
