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MMLU-Pro / 10187 / A charged oil drop of mass 2.5 × 10^…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A charged oil drop of mass 2.5 × 10^\rule{1em}{1pt}4 g is in the space between the two plates, each of area 175 cm^2, of a parallel- plate capacitor. When the upper plate has a charge of 4.5 × 10^\rule{1em}{1pt}7 C and the lower plate an equal negative charge, the drop remains stationary. What charge does it carry?

category

physics

options

  1. 6.25 × 10^13c
  2. 5.67 × 10^-14 C
  3. 4.00 × 10^-13 C
  4. 7.45 × 10^13c
  5. 3.14 × 10^-13 C
  6. 9.98 × 10^13c
  7. 2.21 × 10^-13 C
  8. 8.43 × 10^13c
  9. 9.11 × 10^-14 C
  10. 1.12 × 10^-13 C

src

stemez-Physics

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Source and history

upstream_id / Original problem ID
10187
task_id
a2036a38-058b-503d-8f59-6221f89de9b3
task_key
default--test--10187
task_revision_id
1
config / split
default / test

Official source

initial import