clicker19 - proportional to 1.current 2.magnetic field...

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2/13/2010 1 Quiz Qn. 1 A soft magnetic material has which property? 1. It can not be magnetized 2. It is easy to magnetize 3. It is hard to magnetize 4. It is made of wood Quiz Qn. 2 The force on a charged particle by its motion in a magnetic field is maximum at what angle between the particle velocity and field? 1. zero 2. 180 degrees 3. 90 degrees 4. 45 degrees
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2/13/2010 2 Quiz Qn. 3 A proton and a deuteron are moving with equal velocities perpendicular to a uniform magnetic field. A deuteron has the same charge as the proton but has twice its mass. The ratio of the force on the proton to that on the deuteron is 1. 0.5 2. 1 3. 2 4. the deuteron is not accelerated Quiz Qn. 4 The force exerted on a current-carrying wire located in an external magnetic field is directly
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Unformatted text preview: proportional to 1.current 2.magnetic field 3.both 1 and 2 4.none of the above 2/13/2010 3 Quiz Qn. 5 A circular current loop is placed in an external magnetic field. How is the torque related to the radius of the loop? 1. directly proportional to the radius 2. inversely proportional to the radius 3. directly proportional to the radius squared 4. inversely proportional to the radius squared Quiz Qn. 6 Is the field stronger at a location farther away from the wire? 1. Yes 2. No 2/13/2010 4 Quiz Qn. 7 Is the field stronger if the current is greater? 1. Yes 2. No Quiz Qn. 8 A current-carrying wire can 1. Experience a magnetic force in a magnetic field 2. Produce a magnetic field 3. Both...
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