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Q.49

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
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Short Answer

An electric generator has an 18 -cm-diameter, 120 -turn coil that rotates at 60 in a uniform magnetic field that is perpendicular to the rotation axis. What magnetic field strength is needed to generate a peak voltage of 170 ?

The magnetic field strength is

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Step by Step Solution

Step 1: Magnetic Field

The magnetic field lines has been the portion of magnetization which thus goes through one loop of across By This magnet is calculated on the basis:

The magnet is given by if the magnetism makes an equal with axis.

Step 2: Area

The rotation's pitch is represented by the sign f. Whereas a coil's diameter is d = 18 cm, the length equals

From Faradays, the mediated is the modification of the magnetization in there in the spiral and this is provided by the type

Step 3: Rotation axis

Because the magnetosphere is diagonally to the axis of rotation, the word "perpendicular magnetic field" is used.

. We solve equation

The values

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