A magnetic field

1.	A magnetic field
A.	<table><tr><td> </td><td> </td><td> </td><td> </td></tr><br><tr><td>E = v<sub>0</sub>(3</td><td>a<sub>x</sub> 2</td><td>a<sub>y</sub> 4</td><td>a<sub>z</sub>)</td></tr></table>
B.	<table><tr><td> </td><td> </td><td> </td></tr><br><tr><td>E = v<sub>0</sub>(14</td><td>a<sub>y</sub> &plus; 7</td><td>a<sub>z</sub>)</td></tr></table>
C.	<table><tr><td> </td><td></td><td></td><td> </td><td> </td></tr><br><tr><td>E = </td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>v<sub>0</sub></center></td><td>(14</td><td>a<sub>y</sub> &plus; 7</td><td>a<sub>z</sub>)</td></tr><tr><td></td><td style="text-align: center;"> </td></tr></table>
D.	<table><tr><td> </td><td></td><td></td><td> </td><td> </td></tr><br><tr><td rowspan="2">E = &plus;</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>v<sub>0</sub></center></td><td>(14</td><td>a<sub>y</sub> &plus; 7</td><td>a<sub>z</sub>)</td></tr><tr><td style="text-align: center;"> </td></tr></table>
Answer» C. <table><tr><td> </td><td></td><td></td><td> </td><td> </td></tr><br><tr><td>E = </td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>v<sub>0</sub></center></td><td>(14</td><td>a<sub>y</sub> &plus; 7</td><td>a<sub>z</sub>)</td></tr><tr><td></td><td style="text-align: center;"> </td></tr></table>

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