Question: What happens to the magnetic field strength inside a solenoid if the number of turns is increased? (2023)

Options:

1. It decreases
2. It remains the same
3. It increases
4. It becomes zero

Correct Answer: It increases

Exam Year: 2023

Solution:

The magnetic field strength inside a solenoid increases with the number of turns, as it is directly proportional to the number of turns per unit length.