Question

In: Physics

1. A metal loop moves at constant velocity toward a long wire carrying a steady current...

1. A metal loop moves at constant velocity toward a long wire carrying a steady current I = 2.0 A. The current induced in the loop is:

A. Directed clockwise.

B. directed counterclockwise.

C. Zero.

D. Cannot tell, more information is needed.

2. Loop A in the figure shown is part of a simple circuit with switch open.  Loop B is another one that lies below Loop A. to A When the switch is closed, there is an induced current generated in in the loop. As one looks from the top, the direction of the induced current is

A. Directed clockwise.

B. directed counterclockwise.

C. Zero.

D. Cannot tell, more information is needed

3. The figure shows a region with a constant magnetic field that points into the page. A circular loop is initially dropped from above the field so that the loop falls into and through the magnetic field. As the loop falls, the direction of the induced current at the top of the magnetic field is

A. Directed clockwise.

B. directed counterclockwise.

C. Zero.

D. Cannot tell, more information is needed.

4. The figure shows a region with a constant magnetic field that points into the page. A circular loop is initially dropped from above the field so that the loop falls into and through the magnetic field. As the loop falls, the direction of the induced current at the bottom of the magnetic fieldis

A. Directed clockwise.

B. directed counterclockwise.

C. Zero.

D. Cannot tell, more information is needed.

5. The figure shows a region with a constant magnetic field that points into the page. A circular loop is initially dropped from above the field so that the loop falls into and through the magnetic field. As the loop falls, the direction of the induced current in the middle of the magnetic fieldis

A. Directed clockwise.

B. directed counterclockwise

C. Zero.

D. Cannot tell, more information is needed                                                                       

Solutions

Expert Solution


Related Solutions

A long, straight wire carrying a current of 3.00 A moves with a constant speed v...
A long, straight wire carrying a current of 3.00 A moves with a constant speed v to the right. A 5-turn circular coil of diameter 1.25 cm, and resistance of 3.25 µΩ, lies stationary in the same plane as the straight wire. At some initial time, the wire is at a distance d = 19.5 cm from the center of the coil. 4.55 s later, the wire is at a distance 2d from the center of the coil. What is...
Conducting Loop and Current-Carrying Wire
An infinite straight wire carries current I1 = 5.8 A in the positive y-direction as shown. At time t = 0, a conducting wire, aligned with the y-direction is located a distance d = 51 cm from the y-axis and moves with velocity v = 19 cm/s in the negative x-direction as shown. The wire has length W = 24 cm.1) What is ε(0), the emf induced in the moving wire at t = 0? Define the emf to be...
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
For each of the actions depicted below, a magnet and/or metal loop moves with velocity v?
For each of the actions depicted below, a magnet and/or metal loop moves with velocity v? (v? is constant and has the same magnitude in all parts). Determine whether a current is induced in the metal loop. If so, indicate the direction of the current in the loop, either clockwise or counterclockwise when seen from the right of the loop. The axis of the magnet is lined up with the center of the loop. Part A For the action depicted...
A metal loop is being pushed at a constant velocity into a uniform magnetic field, as...
A metal loop is being pushed at a constant velocity into a uniform magnetic field, as shown in the figure, but is only partway into the field. As a result of this motion: a) End a of the resistor R is at a higher potential than end b. b) End b of the resistor R is at a higher potential than end a. c) Ends a and b are at the same potential.
You are looking at a current carrying wire. The current is heading straight for you toward your eye.
You are looking at a current carrying wire. The current is heading straight for you toward your eye. The magnetic field lines and field strength are best described by:The field lines point in away from wire, and drop off as \(1 / r^{2}\)The field lines wrap around the wire CCW and drop off as \(1 / \mathrm{r}\)The field lines wrap around the wire CCW and drop off as \(1 / r^{2}\)The field lines point in toward wire, and drop off...
A wire 80 cm long carries 11 A of current. From this wire, a loop of...
A wire 80 cm long carries 11 A of current. From this wire, a loop of 90-turns is made and placed in a magnetic field of 6.50 Tat an angle of 35˚. In first experiment, a square loop is formed and in the second experiment, a circular loop is formed with same number of turns. Calculate the torque in each loop. Which loop produces more torque-the circular loop or the square loop? What is the reason for this change of...
1.include working in your answers 1a) If a long wire is carrying a current of 5.5...
1.include working in your answers 1a) If a long wire is carrying a current of 5.5 A, how far away from the wire would the magnet field strength be 1.0E-5 T? 1b) A transformer is used to step down from the New Zealand mains voltage of 230 V to 110 V for use with an electric razor from the USA. (i) If the razor draws a current of 0.25 A what current (at least) is drawn from the 230 V...
A very long thin wire carries a current I1 is next to a square wire loop...
A very long thin wire carries a current I1 is next to a square wire loop of width L = 5 .0 cm. Both the wire and the loop lay in the same plane with a gap of s = 1 .0 cm between them. The square loop has a break where two parallel plates with surface area A = 4 .0 cm 2 are separated by a gap of d = 1 µm. The radius of the wire that...
Two circular current-carrying loops of wire are shown in the drawing. The inner loop has a...
Two circular current-carrying loops of wire are shown in the drawing. The inner loop has a radius of R0 and carries a current I0, while the outer loop has a radius of 2R0 and carries a current of 4I0. The currents are in opposite directions. If R0 = 0.20 m and I0 = 1.9 A, determine the magnitude and direction of the net magnetic field at the center of the two loops.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT