Problem 2142

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Problem 2-14-2

• John Alamia

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Problem

• A conducting loop is painnted around the equator
  of a spherical rubber baloon. A magnetic field B
  .2cos4t T is applied perpendicular to the plan
  of the equator. The balloon is contracting
  inwardly with a radial velocity v. When the
  balloon radius is r .5m, the RMS voltage
  induced in the loop is 500mV. Find the velocity.

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