Karnataka CET 2025 Question Paper

  • Question - 01
  • Question - 02
Two thin long parallel wires separated by a distance r in vacuum carry a current of 1 ampere in opposite directions. Then, they will:
  • Repel each other with a force per unit length of \( \mu_0 I^2 \over 2\pi r \)
  • Attract each other with a force per unit length of \( \mu_0 I^2 \over 2\pi r \)
  • Attract each other with a force per unit length of \( \mu_0 I^2 \over \pi r \)
  • Repel each other with a force per unit length of \( \mu_0 I^2 \over \pi r \)