There is a 8 m wire with a current of 15 amps exposed horizontally between two concrete walls. What is the magnitude of the B-field in micro-tesla (u T) 1 m up from the wire and 3.8 m out from the left wall?
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- I I,- The picture shows two perpendicular wires where I1 is 14.6 amps, and I2 is 21.9 amps. The location A is in the plane of the two wires and is 25.0 mm from the x-axis and 15.9 mm from the y-axis. Given the direction of current in each wire, what is the B-field at the location A in micro teslas? (If the B-field points toward you, make it positive; if it points away from you, make it negative. Give answer as an integer with correct sign. Do not enter unit.)In the figure, an electron accelerated from rest through potential difference V1=1.26 kV enters the gap between two parallel plates having separation d = 19.6 mm and potential difference V2= 52.4 V. The lower plate is at the lower potential. Neglect fringing and assume that the electron's velocity vector is perpendicular to the electric field vector between the plates. In unit-vector notation, what uniform magnetic field allows the electron to travel in a straight line in the gap? I need this in units of mT.A rod is moving from left to right toward a resistor along two parallel conducting rails. The entire loop is inside a magnetic field oriented out of the page. The rod is moving 81m/s the magnetic field has a magnitude of 4.1T and induce in the loop is 5.8V. what is the length of the rod in m the resistor has a resistance of 55. What is the current through the rod in A what is the magnitude of the lerntz force on the rod in N
- In the figure, an electron accelerated from rest through potential difference V1-1.26 kV enters the gap between two parallel plates having separation d = 19.6 mm and potential difference V2- 52.4 V. The lower plate is at the lower potential. Neglect fringing and assume that the electron's velocity vector is perpendicular to the electric field vector between the plates. In unit-vector notation, what uniform magnetic field allows the electron to travel in a straight line in the gap? Number ( o ĵ+ i R) Units mT 124.71. You've recently read about a chemical laser that generates a 20-cm-diameter, 25 MW laser beam. One day, after physics class, you start to wonder if you could use the radiation pressure from this laser beam to launch small payloads into orbit. To see if this might be feasible, you do a quick calculation of the acceleration of a 20-cm-diameter, 100 kg, perfectly absorbing block. What speed would such a block have if pushed horizontally 100 m along a frictionless track by such a laser?Consider a straight conductor of length 9.7 cm. The conductor moves at right angles to a magnetic field of uniform strength B = 10-3 T generating e.m.f. of 2.5 × 10-³ V. Calculate the velocity of the straight conductor. Give your answer in SI units. Answer: Choose... +
- In the figure, an electron accelerated from rest through potential difference V₁-1.03 kV enters the gap between two parallel plates having separation d-17.2 mm and potential difference V₂-108 V. The lower plate is at the lower potential. Neglect fringing and assume that the electron's velocity vector is perpendicular to the electric field vector between the plates. In unit- vector notation, what uniform magnetic field allows the electron to travel in a straight line in the gap? Number (0 7+0 3.30e-4 A) Units mTTwo long, parallel wiresseparated by a distance 2d carryequal currents in the same direction.An end view of the two wiresis shown in Figure P19.54, wherethe currents are out of the page.(a) What is the direction of themagnetic field at P on the x - axisset up by the two wires? (b) Find anexpression for the magnitude of thefield at P. (c) From your result to part (b), determine the fieldat a point midway between the two wires. Does your resultmeet with your expectation? Explain.A (8.42x10^-1)-m radius cylindrical region contains a uniform electric field along the cylinder axis. It is increasing uniformly with time. What is the rate of change (magnitude) of the electric field required to obtain a total displacement current of (2.047x10^0) nA through a cross section of the region? Provide your answer in V/(m.s) with three significant figures.
- wrongTwo long wires a positioned as shown below -- one along the x direction and one along y direction. Each wire has a current of 10 A in the indicated directions and the top wire is 10 cm above the bottom wire. What is the angle of the B field exactly half-way between the two wires in degrees? We define to the right as 0 degrees, up as 90, left as 180, and down as 270. What is the magnitude of the magnetic field in μT to 3 significant digits?