Answer:
0.2 A, clockwise direction
Explanation:
We are given that
Current,I=25 A
Number of turns=n=20
Magnetic field at center of r the loop=B=0
d=2 m
We have to find the direction and magnitude of current flowing in the loop.
Magnetic field due to current I
Magnetic field due to I'
a=1 m
Net magnetic is zero
Therefore,
Where
Direction: Clockwise
Answer:
- 1.07 ft
Explanation:
V1 = (-5, 7, 2)
V2 = (3, 1, 2)
Projection of v1 along v2, we use the following formula
=\frac{\overrightarrow{V1}.\overrightarrow{V2}}{V2}
So, the dot product of V1 and V2 is = - 5 (3) + 7 (1) + 2 (2) = -15 + 7 + 4 = -4
The magnitude of vector V2 is given by
=
So, the projection of V1 along V2 = - 4 / 3.74 = - 1.07 ft
Thus, the projection of V1 along V2 is - 1.07 ft.
so we need to find the direction of v2