Two parallel wires with currents in the same direction are 5 cm apart. Moving them to 10 cm apart makes the attraction:

  1. double
  2. halve
  3. quarter
  4. unchanged
Answer

B) halve

F propto 1/d. SLO P-09-E-37 · Understanding

Physics MCQ · More Magnetism and Electromagnetic Induction MCQs · Practise