You would like to store 8.5 J of energy in the magnetic field of a solenoid....

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You would like to store 8.5 J of energy in the magnetic field of a solenoid....

You would like to store 8.5 J of energy in the magnetic field of a solenoid. The solenoid has 500 circular turns of diameter 7.0 cm distributed uniformly along its 45-cm length.

(a) How much current is needed?

A

(b) What is the magnitude of the magnetic field inside the solenoid?

T

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