A conducting rod AC of length 4l is rotated about a point O in a unifo – McqOptions

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1.	A conducting rod AC of length 4l is rotated about a point O in a uniform magnetic field \[\vec{B}\] directed into the paper. AO = l and OC = 3l. Then
A.	\[{{V}_{A}}-{{V}_{O}}=\frac{B\omega {{l}^{2}}}{2}\]
B.	\[{{V}_{O}}-{{V}_{C}}=\frac{7}{2}B\omega {{l}^{2}}\]
C.	4C
D.	\[{{V}_{C}}-{{V}_{O}}=\frac{9}{2}B\omega {{l}^{2}}\]
Answer» D. \[{{V}_{C}}-{{V}_{O}}=\frac{9}{2}B\omega {{l}^{2}}\]

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