Question

A single loop of wire in the shape of a square with sides of length l=25.0...

A single loop of wire in the shape of a square with sides of length l=25.0 cm is sitting in a uniform magnetic field of 1.30 T. The field points out of the page, and the the loop is in the plane of the page with sides parallel to the x and y axes.

(a) If a current of 3.70 A flows through the loop, what is the magnitude of the magnetic force on a single side of the loop?

(b) If the magnetic field strength drops to zero in 2.40 s, what is the magnitude of the emf that will be induced in the loop? (Disregard the original current flow in this part and the next part).

(c) What direction (clockwise or counter clockwise) would the current flow due to the emf from part (b)?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The induced current as a result of induced emf is in such a direction that it always opposes the change in external magnetic field. So there will be a increasing induced magnetic field in direction of out of the page to counter the DECREASING external magnetic field.

And it is only possible when induced current flows in COUNTERCLOCKWISE direction

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
6: A single-turn circular loop of wire rests flat on this page. A magnetic field is...
6: A single-turn circular loop of wire rests flat on this page. A magnetic field is directed perpendicular to this page pointing outwards (towards you). When the magnetic field strength increases from 3.2 T to 6.5 T in 0.026 seconds, a 1 V emf is induced in the coil. a) Calculate the radius of the loop. b) State the direction of the induced current and briefly explain how you arrived at your answer.
A magnetic field, strength 3T, has a direction out of the page. A loop of wire...
A magnetic field, strength 3T, has a direction out of the page. A loop of wire sits in the field and on the plane of the page (area vector of loop is out of page). The loop is much smaller than the extent of the field. The magnetic field starts to slowly change at a rate of -0.0001T/s. Looking down on the loop, which statement is correct? A. Magnetic flux out of page decreasing; anti-clockwise current induced in loop B....
A square loop of wire, of side length 9.5 m, is placed on the edge of...
A square loop of wire, of side length 9.5 m, is placed on the edge of a magnetic field of strength 3 T into the page. This field can be described as a section of the Cartesian plane with x<0 (everywhere x is negative) and the loop is oriented so that it is in this plane with its right edge at x=0 (it starts entirely within the magnetic field). The wire loop is then pulled in the +x direction (out...
A single loop of wire of radius 12 cm lies on the x-y plane (imaging it...
A single loop of wire of radius 12 cm lies on the x-y plane (imaging it lying on your page of paper) and carries a current of 1.00 A in the clockwise direction . At the same time, a long straight wire that just touches the rim at the edge of the wire loop carries a 0.808-amp current in the +z direction ("out of the page"). Find the magnetic field at the center of the wire loop. Reminder: the loop...
A wire loop with 40 turns is formed into a square with sides of length ss....
A wire loop with 40 turns is formed into a square with sides of length ss. The loop is in the presence of a 1.60 T uniform magnetic field →B→ that points in the negative yy direction. The plane of the loop is tilted off the x-axis by θ=15. If i=1.80 A of current flows through the loop and the loop experiences a torque of magnitude 0.0745 N⋅m, what are the lengths of the sides ss of the square loop,...
A square loop of wire d=10cm is sitting inside a solenoid. The loop has a resistance...
A square loop of wire d=10cm is sitting inside a solenoid. The loop has a resistance of 40 Ohms. The loop is tilted upward at an angle of 30 degrees with the axis of the solenoid. A consand current flows through the solenoid producing magnetic field equal to 0.5T. What is the magnetic flux through the loop? What is the induced emf if the fields rate increased at a rate of .25T/s? What is the magituted of the current that...
A square conducting loop 8.4 cm on a side is placed in a uniform B-field so...
A square conducting loop 8.4 cm on a side is placed in a uniform B-field so that the plane of the loop is perpendicular to the direction of the field lines. If the loop is then converted into a rectangular loop measuring 2.1 cm on its shortest side in 6.50 ms, and the average emf induced across the loop is 14.7 V during this time period, what is A) the strength of the B-field? B) What is the direction of...
1. A rectangular loop of wire with sides 0.142 and 0.528 m lies in a plane...
1. A rectangular loop of wire with sides 0.142 and 0.528 m lies in a plane perpendicular to a constant magnetic field (see part a of the drawing). The magnetic field has a magnitude of 0.604 T and is directed parallel to the normal of the loop's surface. In a time of 0.104 s, one-half of the loop is then folded back onto the other half, as indicated in part b of the drawing. Determine the magnitude of the average...
A circular wire loop with a radius of 10 cm is placed in a magnetic field...
A circular wire loop with a radius of 10 cm is placed in a magnetic field of 1.0 T that is parallel to its axis into the page. The loop is stretched to half of its initial area within a time of 0.1 seconds. What is the induced voltage and the direction of induced current? (a) 157 mV, clockwise current (b) 120 mV, counter clockwise current (c) 79 mV, clockwise current (d) 0 V, no current The answer is A...
A circular conductive loop of wire sits a centimeter away from a straight, infinitely-long current-carrying wire....
A circular conductive loop of wire sits a centimeter away from a straight, infinitely-long current-carrying wire. For each of the following scenarios, predict the outcome and explain how you made this prediction. (a)The loop sits stationary near the wire and does not move. The magnitude and direction of the current in the current-carrying wire does not change. Is there an induced magnetic field in the loop? (b)The loop begins to move toward the infinitely-long current-carryingwire. Is there an induced magnetic...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT