A wire carrying a 27 A current passes between the poles of a strong magnet that is perpendicular to its field and experiences a 2.37 N force on the 4.5 cm of wire in the field. What is the average field strength? Average field strength in tesla = (b) A spherical surface of area 0.8m2, emissivity 0.92 and temperature 114°C is placed in a large, evacuated chamber whose walls are maintained at a fixed temperature. Find the rate at which radiation is emitted by the surface?( Stefan's constant σ = 5.67 x 10-8 W/m2T4 ) Energy radiated per second in watts =
A wire carrying a 27 A current passes between the poles of a strong magnet that is perpendicular to its field and experiences a 2.37 N force on the 4.5 cm of wire in the field. What is the average field strength? Average field strength in tesla = (b) A spherical surface of area 0.8m2, emissivity 0.92 and temperature 114°C is placed in a large, evacuated chamber whose walls are maintained at a fixed temperature. Find the rate at which radiation is emitted by the surface?( Stefan's constant σ = 5.67 x 10-8 W/m2T4 ) Energy radiated per second in watts =
Chapter11: Magnetic Forces And Fields
Section: Chapter Questions
Problem 28P: An electron in a TV CRT moves with a speed of 6.0107 m/s, in a direction perpendicular to Earth's...
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A wire carrying a 27 A current passes between the poles of a strong magnet that is perpendicular to its field and experiences a 2.37 N force on the 4.5 cm of wire in the field. What is the average field strength?
Average field strength in tesla =
(b) A spherical surface of area 0.8m2, emissivity 0.92 and temperature 114°C is placed in a large, evacuated chamber whose walls are maintained at a fixed temperature. Find the rate at which radiation is emitted by the surface?( Stefan's constant σ = 5.67 x 10-8 W/m2T4 )
Energy radiated per second in watts =
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