practiceexam2solns - EXAM 2 NAME IUPUI Physics 219...

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EXAM 2 NAME____________________________ IUPUI Physics 219 Part I – Multiple Choice Questions – 2 points each Directions: Circle for the one alternative that best completes the statement or answers the question. Unless otherwise stated, assume ideal conditions (no air resistance, uniform gravity, etc.) 1) A charge is initially at rest next to a wire which has current running through it. In what direction will the charge accelerate? (A) towards the wire (B) away from the wire (C) nowhere F=qvB so if v=0… (D) perpendicularly away from the wire (E) parallel to the wire 2) A proton is shot down a solenoid with current going counterclockwise. What is the direction of the magnetic field inside the solenoid? (A) directed (B) directed (C) directed ) (D) directed X RHR 2b (E) equal to zero. 3) A proton is shot down a solenoid with current going counterclockwise. What is the direction of the force on the proton (hint what is the direction of the magnetic field?). 4) Which of the following is NOT a way to generate electricity in a circular loop of wire exposed to a magnetic field? 5) This question requires a 1 sentence answer instead of being a multiple choice question. How is most of the electricity in the United States produced (focus on the electricity and not the energy that becomes the energy)? We vary the orientation of the loop in the field – that is we rotate a wire inside a magnetic field. 6) An ideal step-up transformer has MORE
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