The compass of the tangent galvanometer was at angle of 0=45 with respect to the earth...

   

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The compass of the tangent galvanometer was at angle of 0=45 with respect to the earth magnetic field B (S-N), the plane of the coil is parallel to Be as shown in Fig What is the magnitude of the horizontal magnetic field of the earth B (in micro Tesla) if the current in the coil I = 15 mA. (The number of turns of the coil is N=500, the diameter is 15 cm) Select one: O a. 62.8 b. 29.3 C. 15.2 d. 60.0 N Fig. 2H B The compass of the tangent galvanometer was at angle of 0=45 with respect to the earth magnetic field B (S-N), the plane of the coil is parallel to Be as shown in Fig What is the magnitude of the horizontal magnetic field of the earth B (in micro Tesla) if the current in the coil I = 15 mA. (The number of turns of the coil is N=500, the diameter is 15 cm) Select one: O a. 62.8 b. 29.3 C. 15.2 d. 60.0 N Fig. 2H B

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To solve this problem we will use the tangent galvanometer equation which relates the magnetic field created by the coil to the magnetic field of the ... View the full answer