A long straight wire carrying a current of 30 A is placed in an external uniform magnetic field of induction 4 × 10 –4 T. The magnetic field is acting parallel to the direction of current. The magnitude of the resultant magnetic induction in tesla at a point 2.0 cm away from the wire is –
Text Solution
Verified by ExpertsThe correct answer is:
C
Parallel to current.
Vector B due to wore at a pt. 2 cm
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