The figure shows a metallic block
The figure shows a metallic block, with its faces parallel to coordinate axes. The block is in a uniform magnetic field of magnitude 30 mT. One edge length of the block is 25 cm; the block is not drawn to scale. The block is moved at 4.0 m/s parallel to each axis, in turn, and the resulting potential difference V that appears across the block is measured. With the motion parallel to the y axis, V = 24 mV; with the motion parallel to the z axis, V = 36 mV; with the motion parallel to the x axis, V = 0. What are the block lengths
21
Oct
The figure shows a metallic block, with its faces parallel to coordinate axes. The block is in a uniform magnetic field of magnitude 30 mT. One edge length of the block is 25 cm; the block is not drawn to scale. The block is moved at 4.0 m/s parallel to each axis, in turn, and [...]
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Column I shows the cylindrical region of radius r where a downward magnetic field B exists ,
The figure shows a metallic block ,
where B is increasing at the rate of dB/dt. A rod PQ is placed in different situation as shown. Match the column I with the current statement in column II regarding the induced emf in rod. ,