The answer would be a and c
Answer:
The magnitude of magnetic flux is 0.849 Wb.
Explanation:
Given that,
Number of turns in a coil, N = 290
Radius of the coil, r = 11.5 cm
Magnetic field, B = 0.0705 T
The magnetic field is directed perpendicular to the plane of the coil. The magnetic flux is given by :
So, the magnitude of magnetic flux is 0.849 Wb.
Answer:
D. drops to one quarter its original value
Explanation:
Answer:
a) Vb = 4.65m/s at 25.46° due south of east
b) t = 119s
c) d = 238m
d) 28.43° due north of east.
e) Vb = 3.69m/s due east
f) t = 135.5s
Explanation:
Velocity relative to the earth is:
Vb = 4.65m/s < -25.46°
Since the distance to travel is 500m:
The distance on the y-axis is given by:
If the final position is directly east from the starting position:
From the y-components:
Solving for β:
β=28.43°
With this angle, the velocity would be:
Vb = 4.2*cos(28.43°) = 3.69m/s
And the time it would take it to cross:
t = 500/3.69 = 135.5s