Categories > Moving Charges and Magnetism > Biot-Savart's Law > A long straight wire carrying current of 30A is placed in an external uniform magnetic field of induction $4 \times 10^{–4}T$. 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

Moving Charges and Magnetism

Question: A long straight wire carrying current of 30A is placed in an external uniform magnetic field of induction $4 \times 10^{–4}T$. 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


1) $10^{–4}$
2) $3 \times 10^{–4}$
3) $5 \times 10^{–4}$
4) $6 \times 10^{–4}$
Solution: Explanation: No Explanation
Biot-Savart's Law Amperes Law

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