A) \[5499\]
B) \[5500\times {{10}^{7}}\]
C) \[5500\times {{10}^{-7}}\]
D) \[5501\]
Correct Answer: A
Solution :
The relation for magnetic susceptibility is given by \[P=\overset{\to }{\mathop{\mathbf{F}}}\,\cdot \overset{\to }{\mathop{\mathbf{v}}}\,\] or \[\overset{\to }{\mathop{\mathbf{F}}}\,=7\widehat{\mathbf{i}}+6\widehat{\mathbf{k}},\,\,\overset{\to }{\mathop{\mathbf{v}}}\,=3\widehat{\mathbf{j}}+4\widehat{\mathbf{k}}\] Given, \[{{U}_{r}}=5500\] \[\therefore \] \[\chi =5500-1=5499\]
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