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When 20 mA of current flows through a 0.5 cm radius and 180 turns solenoid, the...

When 20 mA of current flows through a 0.5 cm radius and 180 turns solenoid, the magnetic energy inside is 1.8 nJ. Calculate:
a) Approximately the length of the solenoid.
b) The solenoid's self-inductance.

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Answer #1

current Elnuing = 20mA raduis of belonadal coll no. of twee N = 180 r=0.5cm 0.58102 m suside , U = 1,8 nJ Maguelie energy Mag

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