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Back to Electric Field — Problem 3 · Task Set 5

Exercises: Electric Field

Work through each section in order. Use $k = 9 \times 10^9$ N·m²/C² throughout. Show your work on calculation problems.

Grade 11·22 problems·~35 min·OpenStax Physics (High School)·section·sec-18-3
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Fluency Practice

Use k=9×109k = 9 \times 10^9 N·m²/C². Show your work on calculation problems.

1.

A test charge of q0=+2.0×10−9q_0 = +2.0 \times 10^{-9} C is placed at a point where the electric field has magnitude E=3.0×104E = 3.0 \times 10^4 N/C. What is the magnitude of the force on the test charge? Express your answer in newtons.