Ask your homework questions to teachers and professors, meet other students, and be entered to win $600 or an Xbox Series X 🎉Join our Discord!

Like

Report

Numerade Educator

Like

Report

Problem 11 Easy Difficulty

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 $1.00 \times$ $10^{-3}-$ 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 $3.00 \times 10^{-4} \mathrm{m}^{2}$ and the induced emf has an average magnitude of 5.00 $\mathrm{V}$ . Calculate the time required for the magnetic field to decrease to zero from its maximum value.

Answer

no answer available

Discussion

You must be signed in to discuss.
Top Physics 102 Electricity and Magnetism Educators
Christina K.

Rutgers, The State University of New Jersey

LB
Liev B.

Numerade Educator

Marshall S.

University of Washington

Zachary M.

Hope College

Physics 102 Electricity and Magnetism Bootcamp

Lectures

Join Bootcamp

Video Transcript

are the equation for To figure out who induced your mouth is be a math physical to the turns times ah, rate of change of magnetic flux. Barghouti s O that this is number of turns times d do tee off. Not. It feels strange to be tense area anytime's Cho san zero, which is one. So you have end times B times A over the time taken l t. Is equal to absolute. So we want to find out a teammate that subject, that's n times b times a over and use your mouth. So we have 15 loops. 15 uh, field strength is 10 to the negative. Three. Tesla an area is three times 10 to the negative war. You know, squared You divide by the average member if induced, which is five volts and debt time off nine times 10 to the negative. Seven seconds. So 70.9 microseconds.

New Mexico State University
Top Physics 102 Electricity and Magnetism Educators
Christina K.

Rutgers, The State University of New Jersey

LB
Liev B.

Numerade Educator

Marshall S.

University of Washington

Zachary M.

Hope College

Physics 102 Electricity and Magnetism Bootcamp

Lectures

Join Bootcamp