railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrician and Wireman Electromagnetism

A cable carries a current of 1 A vertically upwards. What will be the magnetic field produced by it at a point 10 cm north? 

1
0.02 μ wb/m2 east to west
2
0.02 μ wb/m2 west to east
3
2 μ wb/m2 east to west
4
2 μ wb/m2 west to east
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