Youve been hired as scientific advisor for Peyton Reeds Ant-Man 2: Ant-Man vs. T

Question

Youve been hired as scientific advisor for Peyton Reeds Ant-Man 2: Ant-Man vs. The Electric Snail. In one scene, Ant-Man is electrically charged as he walks around a tabletop. He struggles the force exerted by a uniform electric field on the table surface. A small voltmeter in his suit indicates to him that the voltage drops 10 V when he walks 5 cm north, and it rises 5 V every 1 cm east he walks. A meter in his suit indicates an electric force pushing Ant-Man due east. What is the electric field function field function implied by the suits voltmeter? Is this consistent with the force reading as written in the script?

Explanation / Answer

V = E.d

along j vector ( y-axis)

Ey = 10/0.05 = - 200 V/m

along i vector ( x-axis)

Ex = 5 / 0.01 = 500 V/m

E = Ex + Ey = 500i - 200j V/m

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