Answer:
Explanation:
We shall apply Ampere's circuital law to find out magnetic field . It is given as follows.
∫B.dl = μ₀ I , B is magnetic field , I is current , μ₀ is permeability .
Radius of the wire r = 1.2 x 10⁻³ m
magnetic field B will be circular in shape around the wire. If B is uniform
∫B.dl = B x 2πr
B x 2πr = μ₀ I
B = μ₀ I / 2πr
= 4π x 10⁻⁷ x 37 /2πx1.2 x 10⁻³
= 10⁻⁷ x 2x37 / 1.2 x 10⁻³
= 61.67 x 10⁻⁴ T
= 62 x 10⁻⁴ T
The Electromagnetic ave that is about the size of humans is : A typical micro waves have around 14 inches ( 1.1 meter) in height.
This is very similar to the height of human right before we hit puberty (around 9 - 10 years old)
The strength of the electric field is 1.035 * 10^7 N/C.
<h3>What is the electric field?</h3>
The term electric field refers to the region in space where the influence of a charge is felt. Now we know that the electric field is obtained form the formula;
E = F/q
E = electric field
F = electric force
q = magnitude of charge
F = 8.8 * 10^-3 * 10 m/s^2 = 0.088 N
q = -8.5 nc or -8.5 * 10^-9 C
E = 0.088 N/ -8.5 * 10^-9 C
E = 1.035 * 10^7 N/C
Learn more about electric field:brainly.com/question/15800304
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Answer:
T = 29.6 N
Explanation:
length of the rope is
L = 18 m
mass of the rope is
m = 12 kg
now we have
mass per unit length of the rope is given as
[te]\lambda = \frac{12 kg}{18 m}[/tex]
now time taken by wave to reach from end to other
now we have
so we will have