Question

Consider a current loop lying in the plane of the page. Suppose that there is a...

Consider a current loop lying in the plane of the page. Suppose that there is a magnetic field which is pointing into the page. If the area of the loop is increased by stretching it, what direction is the induced current in the loop? (clockwise or counterclockwise)

Homework Answers

Answer #1

Answer-Anticlockwise direction.

Magnetic field is pointing into the page.So if we increase the surface area of loop, more number of magnetic lines pass through the loop increasing the flux.

As a result emf induced in that current loop.The emf induced is the rate of change of flux with negative sign.

The negative sign in Faraday's law comes from the fact that the emf induced in the coil acts to oppose any change in the magnetic flux.So the current flows insuch a way that upper surface of current loop acts as north pole. by flowing current in anticlockwise direction.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A conducting loop lies in the plane of this page and carries a clockwise induced current....
A conducting loop lies in the plane of this page and carries a clockwise induced current. Select which of the following statements are true or false: An increasing magnetic field is directed into the page. A decreasing magnetic field is directed out of the page. A constant magnetic field is directed out of the page. A constant magnetic field is directed into the page. Please explain answer as well.
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 rectangular conducting loop is placed near a wire. The plane if the loop lies in...
A rectangular conducting loop is placed near a wire. The plane if the loop lies in the x-y plane of the page. The wire is below the loop towards the bottom of the page and runs horizontally from left to right also in the plane of the page (the x-y plane) and carries current in the +x direction to the right. If the current in the wire decreases in time, what can be said of the current induced in the...
Indicate the direction of the induced current in the loop, given that a magnetic field directed...
Indicate the direction of the induced current in the loop, given that a magnetic field directed ‘away’ from the page (perpendicular and along the center axis of the loop) is gaining strength. (a) Direction will clockwise or counterclockwise. with diagram of wire loop
A single loop of aluminum wire, lying flat in a plane, has an area of 8.00...
A single loop of aluminum wire, lying flat in a plane, has an area of 8.00 cm2 and a resistance of 2.50 Ω. A uniform magnetic field points perpendicular to the plane of the loop. The field initially has a magnitude of 0.500 T, and the magnitude increases linearly to 2.00 T in a time of 2.00 s. What is the induced current (in mA) in the loop of wire over this time?
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...
In a circular loop of wire lying on a horizontal floor, the current is constant and,...
In a circular loop of wire lying on a horizontal floor, the current is constant and, to a person looking downward on the coil, has a counterclockwise direction. What is the direction of the magnetic field at the center of the circle due to this current?
A circular loop of wire with area 0.020 m2m2 lies in the x-y plane. Initially there's...
A circular loop of wire with area 0.020 m2m2 lies in the x-y plane. Initially there's a magnetic field of 3.6 TT in the -z-direction. The field remains constant for 11 ss , then decreases gradually to zero in 11 ss , and then remains zero for 11 ss . Part A: Find the magnitude of the induced emf in the loop for the first 11 ss interval. Express your answer to two significant figures and include the appropriate units....
Given a 0.5 x 0.3 m rectangular current loop carrying 5 A of current, A) what...
Given a 0.5 x 0.3 m rectangular current loop carrying 5 A of current, A) what is the magnitude of the magnetic dipole moment of the loop? B) If the loop is lying flat on this page with the current running clockwise around the loop, what is the direction of the magnetic diploe moment vector? 11. In the previous problem, if the magnetic field, B = 0.5 T is oriented in the +y-direction (toward the top of this page), then...
You are looking down on a current-carrying loop, lying horizontally in a magnetic field that is...
You are looking down on a current-carrying loop, lying horizontally in a magnetic field that is also horizontal and pointing north. As seen from above, the current circulates clockwise. Magnetic torque on the loop will try to rotate the loop which way? a. North side upward, south side down. b. West side upward, east side down. c. South side upward, north side down. d. East side upward, west side down.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT