Question

In: Physics

1.) A conducting loop is sitting in a magnetic field. Which of the following actions would...

1.) A conducting loop is sitting in a magnetic field. Which of the following actions would cause the magnetic flux through the loop to change? Select all that apply.

a) change the strength of the magnetic field

b) rotate the loop

c) change the material from which the loop is made

d) change the area defined by the loop

2.) Which of the following statements are false? Select all that apply.

a) An induced magnetic field must point in the same direction as the applied magnetic field.

b) An induced magnetic field must point in the opposite direction of the applied magnetic field.

c) An induced current exists in a loop if there is a constant magnetic flux through that loop.

Solutions

Expert Solution


Related Solutions

A circular conducting loop is held fixed in a uniform magnetic field that varies in time...
A circular conducting loop is held fixed in a uniform magnetic field that varies in time according to B(t) = B exp(-at) where t is in s, a is in s^-1 and B is the field strength in T at t = 0. At t = 0, the emf induced in the loop is 0.0614 V. At t = 2.74 s, the emf is 0.0197V. Find a.
A circular conducting loop with radius 2.70 cm is placed in a uniform magnetic field of...
A circular conducting loop with radius 2.70 cm is placed in a uniform magnetic field of 0.680 T with the plane of the loop perpendicular to the magnetic field, as shown. The loop is rotated 180° about the axis in 0.242 s. 1.What is the direction of the induced current flow as the loop begins to rotate? 2.What is the average induced emf in the loop during this rotation?
What is the magnetic field at the center of the loop in the figure? (figure 1)
Figure 1 What is the magnetic field at the center of the loop in the figure? (Figure 1)  
1. The conducting loop in the figure is moving into the region between the magnetic poles...
1. The conducting loop in the figure is moving into the region between the magnetic poles shown. Is the induced current (viewed from above) clockwise or counterclockwise? A. clockwise B. counterclockwise 2. Is there an attractive magnetic force that tends to pull the loop in, like a magnet pulls on a paper clip? Or do you need to push the loop in against a repulsive force? A. You need to push the loop in against a repulsive force. B. There...
how would you use a loop of wire and a magnetic field to generate current in...
how would you use a loop of wire and a magnetic field to generate current in a loop? That is, discuss practical ways to change the magnetic flux through the loop. Relate this to how the electrical generators work that provides electrical power to your home
A loop of wire carries a current. The resulting magnetic field __________. points toward the loop...
A loop of wire carries a current. The resulting magnetic field __________. points toward the loop at all points points away from the loop at all points is similar to that of a bar magnet in the plane of the loop is similar to that of a bar magnet perpendicular to the plane of the loop
A circular loop which possesses 55 turns is placed in a uniform magnetic field. The direction...
A circular loop which possesses 55 turns is placed in a uniform magnetic field. The direction of the magnetic field makes an angle of 70 o with respect to the normal direction to the loop. The magnetic field strength B is increased at a constant rate from B1 =3T to B2 =17T in a time interval of 20 s. If Ф1 is 3.99 Wb, a) What is the radius of the wire? (PLEASE THOROUGHLY EXPLAIN) b) What is the EMF?...
The conducting loop in the figure is moving into the region between the magnetic poles shown.
1. The conducting loop in the figure is moving into the region between the magnetic poles shown.Is the induced current (viewed from above) clockwise or counterclockwise?A. clockwiseB. counterclockwise 2. Is there an attractive magnetic force that tends to pull the loop in, like a magnet pulls on a paper clip? Or do you need to push the loop in against a repulsive force? A. You need to push the loop in against a repulsive force. B. There is an attractive...
A single loop of wire with an area of 0.0900m2 is in a uniform magnetic field...
A single loop of wire with an area of 0.0900m2 is in a uniform magnetic field that has an initial value of 3.8 T, is perpendicular to the plane of the loop, and is decreasing at a constant rate of 0.190 T/s. (a) What emf is induced in this loop? (b) If the loop has a resistance of 0.600O, find the current induced in the loop.
At what distance on the axis of a current loop is the magnetic field half the...
At what distance on the axis of a current loop is the magnetic field half the strength of the field at the center of the loop? Give your answer as a multiple of R. Express your answer in terms of R using two significant figures.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT