2. A square copper frame has sides of length b. A very long thin solenoid goes throughthe frame as shown. The solenoid has N tums in a total length H and radius a.Assume that > > 2a so the solenoid goes through the frame. The solenoid has anAC current given by I(t) = 1, sin(at) with cow counted as positive. The angularfrequency w is constant.a. Write an expression for the magnetic flux through the square frame as afunction of time. Hint: what is the magnetic field inside and outside a longsolenoid?b. Determine the EMF induced in the frame as a function of time. Please useFaraday's Law with the minus sign.ފޕފO2ahead on viewbc. What is the amplitude of the induced EMF? The amplitude of a sinusoidal function is the maximum deviation ofthe function from the average value. Hint: what is the largest value that cosine or sine can have during a cyde?d. What is the induced EMF as a function of time if the square frame was small enough to fit entirely inside thesolenoid (> <2a) as shown? You should be able to figure this out from without redoing all the work.

We will first write an expression for magnetic field due to solenoid. We use this field to find…

Answered: 2. A square copper frame has sides of…

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