A wooden stick of length $$3\ell $$is rotated about an end with constant angular velocity $$\omega $$ in a uniform magnetic field B perpendicular to the plane of motion. If the upper one third of its length is coated with copper, the potential difference across the whole length of the stick is

Question

TuteeHUB · Accepted Answer

$$\frac{B\omega {{\ell }^{2}}}{2}$$

TuteeHUB · Answer

$$\frac{9B\omega {{\ell }^{2}}}{2}$$

TuteeHUB · Answer

$$\frac{4B\omega {{\ell }^{2}}}{2}$$

TuteeHUB · Answer

$$\frac{5B\omega {{\ell }^{2}}}{2}$$

1.	A wooden stick of length \[3\ell \]is rotated about an end with constant angular velocity \[\omega \] in a uniform magnetic field B perpendicular to the plane of motion. If the upper one third of its length is coated with copper, the potential difference across the whole length of the stick is
A.	\[\frac{9B\omega {{\ell }^{2}}}{2}\]
B.	\[\frac{4B\omega {{\ell }^{2}}}{2}\]
C.	\[\frac{5B\omega {{\ell }^{2}}}{2}\]
D.	\[\frac{B\omega {{\ell }^{2}}}{2}\]
Answer» D. \[\frac{B\omega {{\ell }^{2}}}{2}\]

A wooden stick of length \[3\ell \]is rotated about an end with constant angular velocity \[\omega \] in a uniform magnetic field B perpendicular to the plane of motion. If the upper one third of its length is coated with copper, the potential difference across the whole length of the stick is

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