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 1.50 ✕ 10−3 t magnetic field. varying this magnetic field magnitude changes the flux through a 16.0-turn circular loop in the device, creating an emf that charges its battery. suppose the loop area is 2.75 ✕ 10−4 m2 and the induced emf has an average magnitude of 5.50 v. calculate the time required (in s) for the magnetic field to decrease to zero from its maximum value.

Explanation:

The problem must be addressed through the concepts of electromotive force. By Faraday's law it is defined that

Where

Electromotive Force

N = Number of Loops

A = Area

B = Magnetic Field (chaging through the time)

From this equation and our values, we need to find the time, then we re-arrange the equation

Therefore the time required for the magnetic field to decrease to zero from its maximum value is

step-by-step explanation:

we are given

we have to simplify it

firstly, we will factor it

now, we can cancel like terms

now, we can combine it

so, we get

you have to draw the persons position over there