Cracking the SAT Physics Subject Test

(Marvins-Underground-K-12) #1

Fon (^) q = qE = (−5.0 × 10−12 C)(8.0 × 10^4 N/C to the right) = 4.0 × 10−7 N to the left.



  1. What can you say about the electric force that a charge would
    feel if it were placed at a location at which the electric field was
    zero?


Here’s How to Crack It


Remember that Fon (^) q = qE. So if E = 0, then Fon (^) q = 0. (Zero field means zero
force.)

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