A solenoid A has 800 turns wound uniformly over a length of
PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
A solenoid A has 800 turns wound uniformly over a length of 40cm. Another solenoid B of the same length carries the same current but has 1200 turns. Find the ratio of the magnetic fields at the centres of the two solenoids, BA:BB.