A coil is rotated in a magnetic field generating an emf given by emf = NBAw sin q,where q = wt.At which angle q is the emf half of its maximum value?
A)0 $\degree$
B)30 $\degree$
C)45 $\degree$
D)60 $\degree$

Name: A coil is rotated in a magnetic field generating an emf given by emf = NBAw sin q,where q = wt.At which angle q is the emf half of its maximum value? A)0 $\degree$ B)30 $\degree$ C)45 $\degree$ D)60 $\degree$
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Question

Quizplus · Accepted Answer

The emf is half of its maximum value when sin q = 1/2. This occurs at q = 30°.

A Coil Is Rotated in a Magnetic Field Generating an Emf