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PRACTICE · MEMBERSIntermediate · Single correct

PRACTICE / Equipotential surfaces

Read field from labelled voltage contours

In a uniform field region, adjacent parallel equipotential planes are labelled 18 V and 6 V. Their perpendicular separation is 4.0 cm.

What is the field magnitude?

Organize the givens & assumptions
  • Potential difference magnitude: 12 V
  • Perpendicular separation: 0.040 m

Stationary uniform electric field between the stated planes; neglect edge effects. Distances are measured normal to the planes.

  1. A450 N/C450\ \mathrm{N/C}
  2. B0.48 N/C0.48\ \mathrm{N/C}
  3. C300 N/C300\ \mathrm{N/C}
  4. D3 N/C3\ \mathrm{N/C}

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