Solenoid #1 has 100 turns and is 10.0 cm long. Solenoid #2 has 200 turns and is 20.0 cm long. If a current of 0.50 A is carried by #1, what current must #2 carry so that it would produce a magnetic field at its center equal to that in #1?
1.0.25 A
2.0.50 A
3.1.00 A
4.4.00 A
2
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