In the situations below, chose the direction of current. The orange lines are wires, the gray bars are conductors that can slide in contact with the wires, and all velocities (green arrows) are the same. If no current is present, select 0. (a) 菲 (b) (c) (d) (e) (f) B = 0
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- Please calculate for me.An 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…←1.0m3 ↑ XXX xxx 1.0m xxx ↓ x is direction. of B 个 [.0m xxx xxx xxx V=4.0m/s X Consider the two scenarios (i) and (ii). (i) has a square wire in a magnetic field where the field changes -2.0 T/s. (ii) is in a constant magnetic field, B = 0.50 T but has a conducting bar that moves to the right at 4.0 m/s. Both scenarios have a total resistance of 2.0 2. (a) What is the EMF (voltage) in the wire loops in each scenario? (b) What is the current and direction of the current in each scenario?
- Part (a) If a current of 4.5 A is used, what is the force generated per unit field strength on the 20.0 cm wide section of the loop? Use units of newtons per tesla. F/B = ______On an electric stovetop, the elements consist of a thick metal strip/wire that is coiled and may or may not be visible. When supplied with current, by turning a dial or knob, we can heat a pot filled with water because Question 15 options: electrons leave the pot and enter the coil to heat it up. electrons in the coil create a magnetic field in the pot to heat it up. electrons leave the coil and enter the pot to heat it up. electrons in the coil encounter resistance and the coil heats up.O 180, 90, 180 When using the Biot-Savart law, the angle between 7 and ds is _________ degrees for the left, degrees for the semicircle, and degrees for the right segment of the wire. Use the convention that ds points in the direction of the current. O 180, 90, 0 O 90, 0, 90 O 0.90.0 R O 0, 90, 180 H