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a. Where on the earth's surface is the value of vertical component of the earth's magnetic field zero ? b. The horizontal component of the earth's magnetic field at a given place is 0.4xx10^(-4) Wb//m^2 and angle of dip is 30^@ Calculate the value of (i) vertical component (ii) the total intensity of the earth's magnetic field. |
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Answer» Solution :a. At the equator , the value of VERTICAL component of earth.s MAGNETIC field is zero. b. i. `Z_E=B_E SIN I = 0.4 xx10^(-4) xx tan 30^@ = 0.23 xx10^(-4) Wbm^(-2)` ii. TOTAL intensity of earth.s magnetic field, `B_E=H_E/(COSI)=(0.4xx10^(-4))/(cos30^@)=0.46xx10^(-4) Wbm^(-2)` |
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