The earth’s magnetic field is approximately 0.000050 T. What is the energy in 1.1 m3 of that field?
x 10-3
Energy, E = B^2 V/(2 u0)
E = (0.000050^2 x 1.1)/(2 x 4 pi x 10^-7)
E = 1.09 x 10^-3 J
Comment in case any doubt please rate my answer....
The earth’s magnetic field is approximately 0.000050 T. What is the energy in 1.1 m3 of...
The Earth’s magnetic field, B = 5.00 x 10-5 T, points into the page as shown below, and is parallel to the Earth’s surface. An electron is moving with a constant velocity v = 5.00 x 106 m/s to the right in a straight horizontal path between the two charged parallel plates of a capacitor of area 10.0 m2 with plates separated by a distance of 5.00 x 10-3 m. How much charge is on each of the plates? Give...
At New York City, the earth’s magnetic field has a vertical component of 5.20 × 10-5 T that points downward (perpendicular to the ground) and a horizontal component of 1.80 × 10-5 T that points toward geographic north (parallel to the ground). What is the magnitude of the magnetic force on a 7.71-m long, straight wire that carries a current of 21.2 A perpendicularly into the ground? Ans: 2.94 x 10-3N
A cosmic-ray electron moves at 7.0 × 106 m/s perpendicular to Earth’s magnetic field at an altitude where the field strength is 0.5 × 10−5 T. What is the period of revolution of electron? in microseconds.
A cosmic ray electron moves at 7.4 x 106 m/s perpendicular to the Earth’s magnetic field at an altitude where field strength is 1.32 10-5 T. What is the radius (in meters) of the circular path the electron follows? The charge of an electron is 1.6 x 10-19 C and its mass is 9.11 x 10-31m. Your answer should be a number with two decimal places, do not include the unit.
A cosmic ray electron moves at 6.6 x 106 m/s perpendicular to the Earth’s magnetic field at an altitude where field strength is 1.37 10-5 T. What is the radius (in meters) of the circular path the electron follows? The charge of an electron is 1.6 x 10-19 C and its mass is 9.11 x 10-31m. Your answer should be a number with two decimal places, do not include the unit.
A proton in the Solar wind strikes the Earth’s magnetic field at a right angle with a velocity of 2.75 x 105m/s. If the field has strength of 4.33 x 10-5T and the Lorentz force acts to move the proton in a circle, what’s the radius of this circle? A) 0.0589m B) 6.08 x 1019m C) 2.64 x 10-10m D) 66.3m
A circular wire loop of radius 1.1 cm is placed in a magnetic field of magnitude 2.2 T. If the magnetic field goes to zero in a time of 5 s, what is the magnitude of the current induced in the loop? The wire has a diameter of 2 mm, and the resistivity of copper is 1.7 x 10-8 Ohm-m. ______________A
The earth's magnetic field near the surface is approximately how large? a. 1 T b. 5 × 10-5 T c. 5 × 10-3 T d. 1 N
The earth's magnetic field, like any magnetic field, stores energy. The maximum strength of the earth's field is about 7.0 x 10-5 T. Find the maximum magnetic energy stored in the space above a city if the space occupies an area of 4.9 x 106 m2 and has a height of 1900 m.
(a) The magnetic field inside an air filled solenoid 36cm long and 2cm in diameter is 0.8T. Approximately how much energy is stored in this field? (answer 29J)(b) Assuming the earth's magnetic field averages about 0.5 x 10-4 T near the surface of the earth, estimate the total enery stored in this field in the first 10km above the earth's surface. (answer 5.1 x 10+15 J)