6. A positive charge moving with a constant velocity y enters a region of a unif

Question

6. A positive charge moving with a constant velocity y enters a region of a uniform magnetic field pointing into the page. What is the direction of the magnetic force on the charge? a. Left (west) b. Right (east) . To the bottom of the page (south) d.)To the top of the page (north) e. There is no magnetic force on the current 7. The primary winding of an electric train transformer has 500 turns. If we'd like to make the secondary voltage 5 times smaller than its primary input voltage, how many loops should the secondary winding have? A. 10 B. 50 C. 100 D. 500 E. 2500

Explanation / Answer

Right... point fingers of right hand in the direction of the velocity of the moving particle so that you can curl your fingers in the direction of the magnetic field. Your thumb points in the direction of the Force. Note: If it is a negative charge, you point your hand in the opposite direction of the velocity.

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