Two long wires each carrying a current in the same direction are placed close to each other.
Which one of the following statement is correct?
A. The wires will attract with each other
B. The wires will repel with each other
C. There will be no force between the wires
D. There will be a force between the wires only at the moment when the current is switched ON or OFF
Answer: Option A
Solution (By Examveda Team)
Question Explanation:Imagine two parallel wires carrying electricity.
The electricity flowing through these wires creates a magnetic field around each wire.
The direction of the magnetic field depends on the direction of the current.
If the currents in both wires flow in the same direction, their magnetic fields interact in a special way.
The magnetic field of one wire will pass through the other wire.
This interaction between the magnetic fields causes a force.
This force is attractive, meaning the wires pull towards each other.
If the currents flowed in opposite directions, the force would be repulsive (they would push each other away).
Therefore, when currents are flowing constantly in the same direction in both wires, they will attract each other.
Join The Discussion
Comments (1)
Related Questions on Electricity and Magnetism
What will be the total resistance of the three 20-Ω coils connected in series?
A. 40 Ω
B. 20 Ω
C. 60 Ω
D. 800 Ω
Superconductors are substances which
A. conduct electricity at lower temperature
B. offer high resistance to the flow of current
C. offer not resistance to the flow of current
D. conduct electricity at high temperature

Any one can explain..?