In the figure, if a = 2.0 cm, b = 4.0 cm, and I = 2.0 A, what is the magnitude of the magnetic field at point P?
A. 49 ?T
B. 39 ?T
C. 50 ?T
D. 69 ?T
E. 13 ?T
Answer: B
You might also like to view...
Dark matter is known to be the source to dark energy
a. True b. False Indicate whether the statement is true or false
Suppose we have a very flexible wire which we place on top of the north pole of a permanent magnet as shown. When we connect the wire to a battery as shown, which way will the segment of wire (marked in black) at the center of the magnet’s pole be pushed?
A.A
B.B
C.C
D.D
E.E
F.F
A 1000.0 kg car is moving at If a truck has 18 times the kinetic energy of the car, how fast is the truck moving?
A) 45 km/h B) 63 km/h C) 54 km/h D) 36 km/h
At t = 0, a particle is located at x = 25 m and has a velocity of 15 m/s in the positive x direction. The acceleration of the particle varies with time as shown in the diagram. What is the position of the particle at t = 5.0 s?
A. 175 m B. 125 m C. 138 m D. 154 m E. 165 m