Question

Two long wires each carrying a d.c. current in the same direction are placed close to each other. Which one of the following statements is correct?

• A. The wires will attract each other
• B. The wires will repel 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 1

The correct option is A The wires will attract each other

When two current carrying wires are placed parallel to each other they experiences force due to the magnetic field generated by them, when current in them is in same direction the force is attractive.