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9. In general, which one of these is correct? (a) AXA = A12 (b) A B+B A=0 (c) A B + BxA=0 (d) (A + B C = A + B.C) 10. Which o

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Answer #1

9) C- vector product is not commuative but dot product is.

10)C- because it consists of addition vector and scalar which is not possible.

11)B- this is derivative in direction of each axis

12)D- beause y and z are constant so it is perpendicular to yz plane

and it is in xy plane

13)b- magnitude of field is inversely proportional to square of distance so it wiil be multiplied by 1/4

14) a -normal parts of electric filed are not equal only tangential components are equal.

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