1. Find the magnetic field 6.58 cm from a long, straight wire that carries a cur

Question

1. Find the magnetic field 6.58 cm from a long, straight wire that carries a current of 5.69 A.

______T

2. It is desired that a solenoid 26 cm long and with 550 turns produce a magnetic field within it equal to the Earth's magnetic field (5.0 ? 10?5 T). What current is required?
mA

3. Two parallel wires, each carrying a current of I = 3.8 A in the same direction, are shown in the figure, where d = 5.4 cm. Find the direction and magnitude of the net magnetic field at points A, B, and C.

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