Question

5. A singly charged ion with velocity 6.0 X 10 m/s moves in a path of radius 0.30 m in a magnetic field of 0.80 T in a mass spectrometer. What is the mass of this ion? a. 6.4 X 1027 Kg b. 8.2 x 1027 Kg c. 3.2 X 1027 Kg d.12.8 x 1027 Kg 6. A long straight wire carries a current of 60 A. What is the magnitude of the magnetic field 2.5 mm from the wire? a. 2.4 mT b. 2.8 m1 c. 3.2 mT d. 4.8 ml 7. What is the magnetic field at the center of a circular loop of diameter 10.0cm carrying a current of 2.0 A? a. zero b. 6.28 X 106 T c. 1.26 X 10ST d. 2.51 X 10S T 8. Two parallel wires lie in the plane of the paper and carry equal current in the same direction as shown at the right. At a point midway between the wires, the magnetic field is a. zero c. out of the paper b. into the paper d. toward one of the two wires

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Answer 1

よ 2.5x1。3 2-5 8