Moving Charges and Magnetism

Question: 20 ampere current is flowing in a long straight wire. The intensity of magnetic field at a distance 10 cm from the wire will be

1) $4 \times 10^{–5} Wb/m^2$

2) $9 \times 10^{–5} Wb/m^2$

3) $8 \times 10^{–5} Wb/m^2$

4) $6 \times 10^{–5} Wb/m^2$

Solution:

Explanation: No Explanation

Biot-Savart's Law Amperes Law

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