A coil of wire is rotated at a constant rate in a uniform magnetic field and the

Question

A coil of wire is rotated at a constant rate in a uniform magnetic field and the output voltage of the coil is displayed on an oscilloscope as shown in the sketch at the left below. If the settings on the oscilloscope remain fixed and the frequency of rotation is doubled, the trace on the oscilloscope would appear as which of the lettered choices shown?

7.Acoil of wine is sealed "'constant displayed on an ocilosope as shown in the skechnz irtkia lrhe weings.edwoellime mom fi sad and the lmaincy of roarice is doubled, thu: trau eetenolounge Willimer-tide of de lettered choices shown to the right of the original me? EA_idisto.beniny..talias of 5.0 ers wins-10"

Explanation / Answer

Frequence dobled means number of cycles per sec is doubled.

Remaing factors doesnot change means amplitude and phase must be same as original case.

So correct answer is option D

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