# Project #78144 - Loop in Magnetic Field

Question1:

A circular loop made from a flexible, conducting wire is shrinking. Its radius as a function of time is r = r0 e−βt, where r0 = 7.90 cm and β = 1.20 s-1. The loop is perpendicular to a steady, uniform magnetic field B = 0.600 T.

What is the induced emf in the loop at t = 1.50 s?

Question2:

A solenoid is 13.2 cm long has 423 turns and has a diameter of 18.8 cm. The current flowing through the solenoid is 8.90 A.

What is the inductance of the solenoid?

How much energy is stored in the solenoid?

Question3:

An LC circuit is built with a 5.60 mH inductor and a 5.00 pF capacitor. The capacitor voltage has its maximum value of 70 V at t = 0 s.

How long is it until the capacitor is first fully discharged?

What is the inductor current at that time?

 Subject Science Due By (Pacific Time) 08/03/2015 03:00 pm
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