In the figure below, a stiff wire bent into a semicircle of radius a is rotated
ID: 1696202 • Letter: I
Question
In the figure below, a stiff wire bent into a semicircle of radius a is rotated at constant frequency f in a uniform magnetic field B. (Use any variable or symbol stated above as necessary. All quantities are in SI units.) Need equations
In the figure below, a stiff wire bent into a semicircle of radius a is rotated at constant frequency f in a uniform magnetic field B. (Use any variable or symbol stated above as necessary. All quantities are in SI units.) Need equations (a) What is the frequency of the emf induced in the loop? frequency = ? (b) What is its amplitude? amplitude = B*(pi^2)*(a^2)*fExplanation / Answer
The amplitude of what? Current , voltage, flux ? Take voltage V = dø / dt = B . p r^2 / T/2 = 2p . f . b . a^2 = V max