Physics · Electromagnetism
Which of the following statements regarding a solenoid are correct? (i) A wire wound with a large number of turns in the form of a helix is known as a solenoid. (ii) The magnetic flux density inside the solenoid is directly proportional to the number of turns per unit length, current, and absolute permeability. (iii) The magnetic field outside an ideal, infinitely long solenoid is zero.
- 1(i), (ii) and (iii)✓
- 2(i) and (iii) only
- 3(ii) and (iii) only
- 4(i) and (ii) only
Correct answer
(i), (ii) and (iii)
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