Inductive charging is used to wirelessly charge electronicdevices ranging from toothbrushes to cell phones. Supposethe base unit of an inductive charger produces a 1.00 x10-3-T magnetic field. Varying this magnetic field magnitudechanges the flux through a 15.0-turn circular loop inthe device, creating an emf that charges its battery. Supposethe loop area is 3.00 x 10-4 m2 and the induced emf has anaverage magnitude of 5.00 V. Calculate the time requiredfor the magnetic field to decrease to zero from its maximumvalue.

Question
Asked Dec 23, 2019
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Inductive charging is used to wirelessly charge electronic
devices ranging from toothbrushes to cell phones. Suppose
the base unit of an inductive charger produces a 1.00 x
10-3-T magnetic field. Varying this magnetic field magnitude
changes the flux through a 15.0-turn circular loop in
the device, creating an emf that charges its battery. Suppose
the loop area is 3.00 x 10-4 m2 and the induced emf has an
average magnitude of 5.00 V. Calculate the time required
for the magnetic field to decrease to zero from its maximum
value.

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Expert Answer

Step 1

Given:

Magnetic field, B = 1x10-3 T

Number of turns = 15

Area of coil =...

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