<span>When the difference between two results is larger than the estimates error, the result is</span>
Answer:
Explanation:
(a) the angle between the coil and the coil's magnetic dipole moment is same that means zero degree.
(b) L = 17.6 cm = 0.176 m
i = 5.95 mA = 5.95 x 106-3 A
B = 4.74 mT = 4.74 x 10^-3 T
(b) Let r be the radius of the loop is r
Circumference = 2 x 3.14 x r
0.176 = 2 x 3.14 x r
r = 0.028 m
B = μo/4π x (N x 2 π i) / r
Where, N be the number of turns
4.74 x 10^-3 = (10^-7 x N x 2 x 3.14 x 5.95 x 10^-3) / 0.028
N = 3.55 x 10^4
(c) Maximum torque = N i A B
τ = 3.55 x 10^4 x 5.95 x 10^-3 x 3.14 x 0.028 x 0.028 x 4.74 x 10^-3
τ = 2.465 x 10^-3 Nm
Answer:
Ki = 0.28665 J
h = 0.133 m
Explanation:
Given:
- The mass of rod M = 0.22 kg
- The length of rod L = 1.2 m
- The angular speed at the lowest point w = 2.33 rad /s
Find:
(a) the rod's kinetic energy at its lowest position
(b) how far above that position the center of mass rises.
Solution:
- The moment of inertia of a rod pivoted at one of its ends is given by I:
I = ML^2 / 3
- The Kinetic energy at the lowest point is given by the rotational energy as follows:
Ki = 0.5*I*w^2
Ki = 0.5*ML^2 / 3*w^2
Ki = ML^2*w^2 / 6
Ki = (.22*1.2^2*2.33^2) / 6
Ki = 0.28665 J
- Since no external force was acting on the rod we can apply the conservation of energy of system consisting of the rod where the change in kinetic energy leads to a change in gravitational potential Energy:
Kf - Ki = Pf - Pi
0 - 0.28665 J = mg( 0 - h )
mg*h = 0.28665
h = 0.28665 / ( 0.22*9.81 )
h = 0.133 m
They given vectors are parallel vectors because they have same direction.
Answer:
Free electrons in a conductor
Explanation:
Current in a conductor is due to flow or motion of the free electrons in it.
The electric current is the flow of electrons in a conductor. The force that causes the current flow through a conductor is called the voltage.
Hope this helps you out! : )