1) A device called a velocity selector containscrossed electric and magnetic fie
ID: 1678104 • Letter: 1
Question
1) A device called a velocity selector containscrossed electric and magnetic fields. It is designed to transmitparticles with velocity v entering the device perpendicularly to both the electric andmagnetic fields without deflection. The magnetic field is createdby permanent magnets and is uniform with a constant magnitude of0.10 T.(a) What magnitude of electric field would beneeded to transmit a beam of protons moving at 2.0 ×105 m/s withoutdeflection? (Ans: 2.0 x10^ 4 V/m ) (b) Is this device sensitive to the charge andmass of the particles? PLEASE EXPLAIN(Ans:No) 2) Two parallel wires of length 1.0 m areseparated by a distance of 1.0 cm. The wires each carry a steadycurrent of 20.0 A in the same direction.
(a) What is the magnitude of the force between the wires? ( Ans:8.0 x10^ -3 N ) (b) Is the force between the wiresattractive or repulsive? PLEASE EXPLAIN(Ans: Attractive) 1) A device called a velocity selector containscrossed electric and magnetic fields. It is designed to transmitparticles with velocity v entering the device perpendicularly to both the electric andmagnetic fields without deflection. The magnetic field is createdby permanent magnets and is uniform with a constant magnitude of0.10 T.
(a) What magnitude of electric field would beneeded to transmit a beam of protons moving at 2.0 ×105 m/s withoutdeflection? (Ans: 2.0 x10^ 4 V/m ) (a) What magnitude of electric field would beneeded to transmit a beam of protons moving at 2.0 ×105 m/s withoutdeflection? (Ans: 2.0 x10^ 4 V/m ) (b) Is this device sensitive to the charge andmass of the particles? PLEASE EXPLAIN(Ans:No) 2) Two parallel wires of length 1.0 m areseparated by a distance of 1.0 cm. The wires each carry a steadycurrent of 20.0 A in the same direction.
(a) What is the magnitude of the force between the wires? ( Ans:8.0 x10^ -3 N ) (b) Is the force between the wiresattractive or repulsive? PLEASE EXPLAIN(Ans: Attractive) (b) Is the force between the wiresattractive or repulsive? PLEASE EXPLAIN(Ans: Attractive)
Explanation / Answer
2) given that L = 1.0m d = 1.0cm = 0.01m I = 20.0A force between the wires F = 0 I2 L/2d = 8 * 10-3 N if the currents are in the same direction the force isattractive please post second question once again
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