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- Four long wires are perpendicular to the x-y plane. Each wire carries the same magnitude current. Wire 1 goes through point (a, a, 0) on the x-y plane, wire 2 goes through the point (-a, a, 0), wire 3 goes through the point (-a, -a, 0), and wire 4 goes through the point (a, -a, 0). Wires 1 and 2 carry their currents in the positive z direction and wires 3 and 4 carry their currents in the -z direction. What is the direction of the resulting magnetic field at the origin? the-x direction There is no direction since the field is zero at this position. O the -y direction O the +x direction(a) How much current flows through the E2 = 18 V battery when the switch is closed? (b) How much current flows through the E1 = 15 V battery when the switch is closed? (c) How much current flows through the E2 = 18 V battery when the switch is open? (d) How much current flows through the 1 = 15 V battery when the switch is open?Please find its equivalent resistance for the 2 sub-parts
- A mass spectrometer is being used to separate common oxygen-16 from the much rarer oxygen-18, taken from a sample of old glacial ice. (The relative abundance of these oxygen isotopes is related to climatic temperature at the time the ice was deposited.) The ratio of the masses of these two isotopes is 16 to 18, the mass of oxygen-16 is 2.66-10-26 m S they are singly charged and travel at 5.106 in a 1.25 T magnetic field. What is the separation Ad=2r₂-2r₁ between their paths when they hit a target after traversing a semicircle? Ion source F=qE FE Ad= F = qvB FB Things to Prepare: 1. Make a list of information given to you. + m Bout V 12r₁ 212 m₂ 2. Identify the formula for the radius of the trajectory for particles in the magnetic field. 3. Set - up the formulae in step 2 for the two for the particles. 4. How can you manipulate the formulae in step 3 to solve for the answer? Bout kg, and(a) The figure below shows two parallel conducting rails 15.2 cm apart, connected by a resistor with resistance R₂ = 5.00 Q. Two metal rods with resistances R₁ = 11.40 and R₂ = 15.0 (2 slide along the rails with negligible friction. Rod R₁ slides to the left at constant speed v₁ = 4.00 m/s, while rod R₂ slides at speed v₂ = 2.00 m/s. The rods and rails are in the presence of a uniform magnetic field pointing into the page, perpendicular to the plane of the rails, with a magnitude of Bin = 0.0100 T. +5 x x x x x x x x x x x x x x x x x x x x x x x x x x upward x x x ---Select--- X * x x x x x x x x Rg x x x x x R₁ R₂ What are the magnitude (in μA) and direction of the current through resistor R₂? μA magnitude direction x x x x (b) What If? What are the magnitude (in μA) and direction of the current through resistor R. if the rods move inward, instead of outward, with the same speeds as in part (a)? μA magnitude directionAn accelerating voltage of 2.36 x 10³ V is applied to an electron gun, producing a beam of electrons originally traveling horizontally north in vacuum toward the center of a viewing screen 37.9 cm away. (a) What is the magnitude of the deflection on the screen caused by the Earth's gravitational field? (b) What is the direction of the deflection on the screen caused by the Earth's gravitational field? up down east west (c) What is the magnitude of the deflection on the screen caused by the vertical component of the Earth's magnetic field, taken as 20.0 μT down? east m (d) What is the direction of the deflection on the screen caused by the vertical component of the Earth's magnetic field, taken as 20.0 µT down? north south west mm (e) Does an electron in this vertical magnetic field move as a projectile, with constant vector acceleration perpendicular to a constant northward component of velocity? Yes No O No (f) Is it a good approximation to assume it has this projectile motion? Yes…
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- What is the current in the rod? (Upward or downward?) Please see diagram for more details.Two long parallel conducting rails are separated by a distance d. At one end they are joined by a resistance R. A conducting bar of length d is made to slide at constant velocity v along the rails. Both the bar and the rails have negligible resistance. (a) What current flows in the circuit? (b) How much power is required to move the bar? (C) How does the power dissipated in the resistance compare with the power required to move the bar?