KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics: Questions 174 - 177 of 250
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Question number: 174
A metal wire of cross-sectional area is held taut at 500 C between two rigid supports with negligible tension in it. The tension developed in the wire if it cooled to -100 C is –
(Given α of metal and )
Question number: 175
Appeared in Year: 2015
Consider the regular array of vertical identical current carrying wires (with direction of current flow as indicated in the figure below) producing through a horizontal table. If we scatter some diamagnetic particles on the table, they are likely to accumulate.
Around regions such as B
In circular regions around individual wires such as C
Around regions such as A