Question

4- When a (h) charge freely moves in an electric field E: it will always move from a higher potential to a lower potential , (T/F)? If the charge is negative it will always move from the higher potential to the lower one (T/F)? 5-In an electric field pointing from West to East: a) A proton will move from b) An electron will move from to to 6- When a (+) sodium ion traverses the axon membrane from the negative to the positive side the potential energy (increases/decreases) This transport is called (active/passive) . 7-An RC circuit is used in windshield wipers of a car to control their timed oscillations. If the capacitor has C-500 microFarad, what should be the value of R to obtain 5 second oscillations? (Recall t-RC)

Answer 1

positive charge moves from high potential to low potential whereas negative charge moves from low potential to high potential

4) true

proton will move from west to east

electron will move from east to west

if positive sodium ion moves from negative to positive side of potential it's potential energy increases

as U = q(delta(V))

As t = RC so R = t/C = 10000 Ohms = 10 kilo ohms

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