Without a core, the field inside a solenoid depends on:

  1. the colour of the wire
  2. the current and the number of turns per unit length
  3. the room temperature only
  4. the battery's mass
Answer

B) the current and the number of turns per unit length

B = mu0nI. SLO P-09-E-36 · Knowledge

Physics MCQ · More Magnetism and Electromagnetic Induction MCQs · Practise