# Past Exam for PHYS 1120 - GENERAL PHYSICS 2 at Colorado (CU)

## Exam Information

 Material Type: Exam 3 Professor: Staff Class: PHYS 1120 - GENERAL PHYSICS 2 Subject: Physics University: University of Colorado - Boulder Term: -- Keywords: CombinationOrientationRectangularFollowing StatementsTransformerAmpere's LawTotal EnergyConfigurationAccelerationIn the Evening

## Sample Document Text

Exam III review. CT3-1 An electron and a proton have the same momentum (p=mv) and enter a region where there is a uniform magnetic field. Which particle is bent more? A: electron B: proton C: both are bent the same amount Answer: Both the electron and proton are bent into circles with the same radius of curvature. R=(mv)/qB. Same p=mv, same q, same B, so same R. The electron has larger acceleration and speed, however. CT3-2 A charged particle is orbiting in a uniform B-field in the sense shown. Is the particle positive or negative? A: positive B(in) B: negative C: impossible to tell Answer: The direction of acceleration and net force must be toward the center of the circle. For a negative particle, the force on particle is toward the center of the circle. CT3-3 A coil of wire carrying current I can rotate freely about an axis in a magnetic field. If released from rest in the position shown, which way does it rotate? A: right side will move out of page B B: left side will move out of page. I C: loop will n...

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