Moving Charges and Magnetism

Question: There are 50 turns of a wire in every cm length of a long solenoid. If 4 ampere current is flowing in the solenoid, the approximate value of magnetic field along its axis at an internal point and at one end will be respectively

1) $12.6 \times {10^{ - 3}}\,Weber/{m^2},\;6.3 \times {10^{ - 3}}\,Weber/{m^2}$

2) $12.6 \times {10^{ - 3}}\,Weber/{m^2},\;25.1 \times {10^{ - 3}}\,Weber/{m^2}$

3) $25.1 \times {10^{ - 3}}\,Weber/{m^2},\;6.3 \times {10^{ - 3}}\,Weber/{m^2}$

4) $25.1 \times {10^{ - 5}}\,Weber/{m^2},\;6.3 \times {10^{ - 5}}\,Weber/{m^2}$

Solution:

Explanation: No Explanation

Biot-Savart's Law Amperes Law

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