How much current must pass through a horizontal power transmission cable in order for the magnetic field at a location 24 m directly below it to be equal to the Earth's magnetic field, which is approximately 4.0 x 10-5 T? Express your answer to two significant figures and include appropriate units.
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A: Let's use the magnetic field formula in terms of the current, radius, and number of turns
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- If a current is 1.1 A, how many turns per centimeter must be wound on a solenoid in order to produce a magnetic field of 2.1×10−32.1×10−3 T within it?In this example, we use = BA cos o to solve for the strength of a magnetic field. A plane surface with area 2.0 cm² is placed in a uniform magnetic field that is oriented at an angle of 30° to the surface. (a) What is the angle o? (b) If the magnetic flux through this area is 0.54 mWb, what is the magnitude of the magnetic field? 18 = B 30% For the same B and A, find the angle at which the flux would have one half the value given above (.e., the angle at which g2.7 x 10 Wb). Express your answer in degrees. Submit A ΠΑΠ ΑΣΦ 4 A C Demidn Enthaals Request Answer 60° ?been struggling with this question: please show steps A beam of charged particles moves undeflected through a region of perpendicular electric and magnetic fields. The magnetic field has a magnitude of 2.0 10–3 T. The electric field is produced by two parallel plates 3.0 cm apart with a potential difference of 3.0 102 V. The speed of the particles is: 4.5 103 m/s 7.0 104 m/s 2.5 105 m/s 5.0 106 m/s
- An alpha particle (the nucleus of a helium atom) consists of two protons and two neutrons, and has a mass of 6.64x1027kg. A horizontal bean of alpha particles is injected with a speed of 1.3x105m/s into a region with a vertical magnetic field of magnitude of 0.155T. a) What is the radius of the path the alpha particles make in the field? b) How long does it take for the alpha particles to move halfway through a complete circle?In one of NASA's space tether experiments, a 20.0 km long conducting wire was deployed as a power source by the space shuttle as it orbited at 7.86 × 10³ m/s around earth and across earth's magnetic field lines. If the component of earth's magnetic field perpendicular to the tether was 1.16 x 10-5 T, determine the maximum possible potential difference between the two ends of the tether.Electrons in Earth's upper atmosphere have typical speeds near 5.73 x 105 m/s. HINT (a) Calculate the magnitude of Earth's magnetic field if an electron's velocity is perpendicular to the magnetic field and its circular path has a radius of 6.79 x 10-² m. (b) Calculate the number of times per second that an electron circles around a magnetic field line.
- Find the flux of Earth's magnetic field of magnitude 5.00 x 10-5 T through a square loop of area 40.0 cm2 for the following: (a) when the field is perpendicular to the plane of the loop T:m2 (b) when the field makes a 25.5° angle with the normal to the plane of the loop T.m2 (c) when the field makes a 90.0° angle with the normal to the plane T.m2What is the magnitude of the magnetic flux (Pinitial) through the coil before it is rotated? Express your answer numerically, in webers, to at least three significant figures. In a physics laboratory experiment, a coil with 250 turns enclosing an area of 13.1 cm? is rotated during the time interval 3.80x10-2 s from a position in which its plane is perpendicular to Earth's magnetic field to one in which its plane is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 6.00x10-5 T. • View Available Hint(s) V ΑΣφ ? |Pinitial| = Wb Submit Part B What is the magnitude of the magnetic flux Pfinal through the coil after it is rotated? Express your answer numerically, in webers, to at least three significant figures. • View Available Hint(s) ΑΣφ |Pfinal| = Wb 圓A circular loop of radius 12.4 cm is placed in a uniform magnetic field. (a) If the field is directed perpendicular to the plane of the loop and the magnetic flux through the loop is 8.50 ✕ 10−3 T · m2, what is the strength of the magnetic field? T(b) If the magnetic field is directed parallel to the plane of the loop, what is the magnetic flux through the loop? T · m2
- A straight conductor of fixed length / is moving at 45 degrees to a uniform magnetic field of strength B with constant speed v. Calculate v, if B=9.7 T, 1=2.5 m and electromotive force e 5 V. Give your answer in Sl units. Answer: m/sProblem 22: A proton moves in a circular path of the same radius as a cosmic ray electron moving at 9.5 × 106 m/s perpendicular to the Earth’s magnetic field at an altitude where the field strength is 1.0 × 10-5 T. Part (a) What will the speed of the proton be in m/s? vp = ______ Part (b) What would the radius of the path be in meters if the proton had the same speed as the electron? rp,v = ______ Part (c) What would the radius be in meters if the proton had the same kinetic energy as the electron? rp,E = ______ Part (d) What would the radius be in meters if the proton had the same momentum as the electron? rp,p = ______The figure below shows a cross section of a long thin ribbon of width w = 5.72 cm that is carrying a uniformly distributed total current i = 3.76 µA into the page. Calculate the magnitude of the magnetic field at a point Pin the plane of the ribbon at a distance d = 2.60 cm from its edge. (Hint: Imagine the ribbon as being constructed from many long, thin, parallel wires.) Number Units