The magnetic field inside a solenoid is-
A. directly proportional to current
B. inversely proportional to current
C. directly proportional to its length
D. inversely proportional to the total number of turns
Answer:A
The magnetic field inside a solenoid is-
A. directly proportional to current B. inversely proportional to current C. directly proportional to its length D. inversely proportional to the total number of turns