Physics, 23.03.2020 20:39 NightSun8891

A 20-cm long solenoid consists of 100 turns of a coil of radius r = 3.0 cm. A current of Io in the coiled wire produces a magnetic field of Bo in the middle of the solenoid. If we wish to produce a field that is 4-times larger, which of the following changes could work?

i) cut the radius of the coil to one-half
ii) quadruple the number of turns in the 20-cm long solenoid
iii) half the length of the 100-turn solenoid but maintain 100 turns across that length.
iv) quadruple the length of the 100-turn solenoid, but also double the radius of the coil.
v) half the length of the solenoid, and double the number of turns to 200 total turns
vi) double the current in the wire, and double the number of turns in the 20-cm long solenoid

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A 20-cm long solenoid consists of 100 turns of a coil of radius r = 3.0 cm. A current of Io in the c...