WBJEE 2021 Physics and Chemistry Solved Paper

PHYSICS

CATEGORY - I (Q1 to Q30)

Carry 1 mark each and only one option is correct. In case of incorrect answer or any combination of more than one answer, ¼ mark will be deducted.

Question : 20 of 80

Marks: +1, -0

Consider two infinitely long wires parallel to Z-axis carrying same current I in the positive Z direction. One wire passes through the point L at coordinates (−1,+1) and the other wire passes through the point M at coordinates (−1,−1). The resultant magnetic field at the origin O will be

µ0I
2√2π
^
j
µ0I
2π
^
j
µ0I
2√2π
^
i
µ0I
4π
^
j

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