Question: Two solenoids have the same length, but solenoid 1 has 15 times the number of turns, 1/9 times the radius and 7 times the current

Two solenoids have the same length, but solenoid 1 has 15 times the number of turns, 1/9 times the radius and 7 times the current of solenoid 2. Calculate the ratio of the magnetic field inside solenoid 1 to the magnetic field inside solenoid 2.

a) 105

b) 123

c) 144

d) 168

e) 197

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