Earth has a magnetic dipole moment of 8.0 × 1022 J/T. (a) What current would have...
Earth has a magnetic dipole moment of 8.0 × 1022 J/T. (a) What current would have to be produced in a single turn of wire extending around Earth at its geomagnetic equator if we wished to set up such a dipole? Could such an arrangement be used to cancel out Earth's magnetism (b) at points in space well above Earth's surface or (c) on Earth's surface?
Round your answer (a) to 3 significant digits.
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Earth has a magnetic dipole moment of 8.0 × 1022 J/T.
(a) What current would have...
Suppose that the magnetic dipole moment of Earth is 9.7 x 1022 ?/T (a) If the...
Suppose that the magnetic dipole moment of Earth is 9.7 x 1022 ?/T (a) If the origin of this magnetism were a magnetized iron sphere at the center of Earth, what would be its radius? (b) What fraction of the volume of Earth would such a sphere occupy? The radius of Earth is 6.37 x 106 m. Assume complete alignment of the dipoles. The density of Earth's inner core is 14 g/cm3. The magnetic dipole moment of an iron atom...
Question 1. (a) Write down the differential form of Maxwell's equations in matter for the dynamic...
Question 1. (a) Write down the differential form of Maxwell's equations in matter for the dynamic case (where the electric and magnetic field can change with time), in the presence of free charges and currents. Describe all physical quantities and constants used. [10] (6) (b) Write down the integral form of Ampere's law in vacuum for the static (non time- dependent) case. Using Stokes' theorem, derive the differential form of Ampere's law. [4] (c) Two charges 91= 5 uC and...
The earth's magnetic moment is 8 x 1022 A-m2. If that moment were created by a...
The earth's magnetic moment is 8 x 1022 A-m2. If that moment
were created by a loop of wire going around the earth (r = 6378
km), what current would need to go through the wire in A?
The wire loop would be on the equator. True or false? Why?
Whether on the equator or close to the equator, which direction
would the current travel? Why?
North Pole Lalli till North Pole Magnetic Field Lines EQUATOR Magnetic
Suppose that the magnetic dipole moment of Earth is 9.7 x 1022 ?/T (a) If the origin of this magnetism were a magnetized iron sphere at the center of Earth, what would be its radius? (b) What fraction of the volume of Earth would such a sphere occupy? The radius of Earth is 6.37 x 106 m. Assume complete alignment of the dipoles. The density of Earth's inner core is 14 g/cm3. The magnetic dipole moment of an iron atom...
Question 1. (a) Write down the differential form of Maxwell's equations in matter for the dynamic case (where the electric and magnetic field can change with time), in the presence of free charges and currents. Describe all physical quantities and constants used. [10] (6) (b) Write down the integral form of Ampere's law in vacuum for the static (non time- dependent) case. Using Stokes' theorem, derive the differential form of Ampere's law. [4] (c) Two charges 91= 5 uC and...
The earth's magnetic moment is 8 x 1022 A-m2. If that moment
were created by a loop of wire going around the earth (r = 6378
km), what current would need to go through the wire in A?
The wire loop would be on the equator. True or false? Why?
Whether on the equator or close to the equator, which direction
would the current travel? Why?
North Pole Lalli till North Pole Magnetic Field Lines EQUATOR Magnetic
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