Given Information:
Current = Ii = 7.2 A
Number of turns inner coil = Ni = 140
Number of turns outer coil = No = 180
Radius inner coil = ri = 0.015 m
Radius outer coil = ro = 0.023 m
Required Information:
outer coil current = Io = ?
Answer:
Io = 8.6 A
Step-by-step explanation:
We have two coils, subscript i denotes inner coil and o denotes the outer coil.
According to the Biot-Savart Law
B = μ₀IN/2r
we will equate the inner and outer magnetic fields
Bi=Bo
μ₀IiNi/2ri = μ₀IoNo/2ro
μ₀ and 2 cancels out
Io = Ii*Ni*ro/No*ri
Io = 7.2*140*0.023/180*0.015
Io = 8.6 A
Therefore, a current of 8.6 A is needed to flow in opposite direction so that the magnetic field is opposite and the net magnetic field will be zero.
Answer:
while all of the world can experience a solar eclipse it is not normally at the same time so one part of the earth might have it but not the other and even in one area if there is one in north america like the last one in texas we did not have a full eclipse
Answer:
The magnitude of the electric field at the center of curvature of the arc is 3.87 N/C
Explanation:
Please see the attachments below
Ans: <span>Alcohol addiction occurs when the desire to feel good and have the pleasurable feelings associated with alcohol or other drug drives desire to continue using the substances.
This is because when a person consumes alcohol on a daily basis, that person then becomes dependent on alcohol and then in every mood of happiness or anxiety, he/she has a strong desire of consuming alcohol and feel good after consuming it.</span>
Answer:
= 154 cm
= 216.6 cm
The image is real
Explanation:
= height of the object = 3.20 cm
= height of the image = 4.50 cm
f = focal length of the converging lens = 90 cm
= object distance from the lens = ?
= image distance from the lens = ?
using the equation for magnification
= 1.40625 eq-1
using the lens equation
using eq-1
= 154 cm
Using eq-1
= 1.40625
= 1.40625 (154)
= 216.6 cm
The image is real