What Is the Direction of Current in a Loop Near a Current-Carrying Wire?

In summary, the question asks about the direction of current flow in a conducting loop as it is pulled towards a long current-carrying wire. The options are no flow, counter-clockwise flow, clockwise flow, or none at all. The equation for emf is given, but there is uncertainty about what to do with it. To determine the current flow, one would need to know the direction of the magnetic field and calculate the magnetic flux.
  • #1
kimberlyann9
13
0

Homework Statement


You are holding a conducting loop of copper and looking at its circle. Behind it is a long current-carrying wire carrying the current from left to right. As you pull the loop toward you, what is the direction of current flow if any?

A)No way to tell
B)Counter-clockwise
C)the applied field is tangent to the loop
D)Clockwise
E)None at all


Homework Equations


emf=-d(magentic flux)/dt

Not too sure what to do here...
 
Physics news on Phys.org
  • #2
kimberlyann9 said:

Homework Statement


You are holding a conducting loop of copper and looking at its circle. Behind it is a long current-carrying wire carrying the current from left to right. As you pull the loop toward you, what is the direction of current flow if any?

A)No way to tell
B)Counter-clockwise
C)the applied field is tangent to the loop
D)Clockwise
E)None at all


Homework Equations


emf=-d(magentic flux)/dt

Not too sure what to do here...

Welcome to PF, kimberlyann9! :smile:

What can you say about the direction of the magnetic field?

And how would you normally calculate a magnetic flux?
 

FAQ: What Is the Direction of Current in a Loop Near a Current-Carrying Wire?

What is electromagnetic induction?

Electromagnetic induction is the phenomenon of generating an electric current in a conductor when it is exposed to a changing magnetic field.

How does electromagnetic induction work?

When a conductor is placed in a changing magnetic field, the magnetic field lines cut through the conductor and induce a current to flow. This is known as Faraday's Law of Induction.

What is the relationship between electricity and magnetism in electromagnetic induction?

Electromagnetic induction demonstrates the relationship between electricity and magnetism, where a changing magnetic field can create an electric field, and an electric current can create a magnetic field.

What are some real-life applications of electromagnetic induction?

Some common applications of electromagnetic induction include generators, transformers, electric motors, and induction cooktops. It is also used in many electronic devices, such as speakers and microphones.

How has electromagnetic induction contributed to scientific discovery and advancements?

Electromagnetic induction has played a crucial role in the development of many modern technologies, including electricity generation and transmission. It has also helped scientists understand the relationship between electricity and magnetism, leading to advancements in fields such as telecommunications and electronics.

Similar threads

Magnets near a current carrying wire
Replies
12
Views
1K
Induction heat flux density induced by wire in a slab
Replies
0
Views
451
Electromagnetic Induction (Long straight wire above circulua
Replies
1
Views
3K
How does an eddy current brake work exactly?
Replies
2
Views
1K
Induced current in a square coil by a current-carrying wire
Replies
2
Views
1K
The direction of induced current and magnetic field produced
Replies
12
Views
2K
Electromagnetic Induction of a Disk
Replies
5
Views
2K
Two parallel wires carrying currents in the same direction.
Replies
2
Views
6K
Induced current in two connected loops
Replies
5
Views
2K
Understanding self-inductance in a solenoid.
Replies
3
Views
702

Hot Threads

Recent Insights

Back
Top