The given assembly made of conducting wire is rotated with a constant angular velocity w about a real axis AC as shown in figure. AD part of assembly is quarter circle of radius R and DB is straight and parallel to axis AC. The magnetic field B? exists vertically upward parallel to axis AC .Find the potential difference between points A and B(only the magnitude).Options are

(A)    B?(w R²/2)

(B)    B?(w? R²/4)

(C)    B? w (2 R² ? ? R²/4)

(D)    zero

Question

The given assembly made of conducting wire is rotated with a constant angular velocity w about a real axis AC as shown in figure. AD part of assembly is quarter circle of radius R and DB is straight and parallel to axis AC. The magnetic field B? exists vertically upward parallel to axis AC .Find the potential difference between points A and B(only the magnitude).Options are

(A) B?(w R²/2)

(B) B?(w? R²/4)

(C) B? w (2 R² ? ? R²/4)

(D) zero

Saurabh Kumar · Answer

Use the cncept define below, and get the concept of E.M.F. production due to rotation of coil.

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