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jones (mj29677) - Homework #4 - tucker - (2083) 2 The charge on an electron is 1.60218 x 0.5 m- 10 9 C and its mass is 9.10939 x 10 31 kg. How strong a magnetic field must be exper rienced by the electron if its path is a circle of radius 5.9 cm? 12.9 A 12.9 A 12.9 A Answer in units of T. Assuming the wire slides without friction 013 10.0 points on the two vertical conductors and has a mass A particle with charge q and mass m is un- of 28 g, find the magnitude of the minimum dergoing circular motion with speed v. At magnetic field that is required to move the t - 0, the particle is moving along the nega- wire. tive x axis in the plane perpendicular to the Answer in units of T. magnetic field B, which points in the positive z direction in the figure below. 009 (part 2 of 2) 10.0 points What is its direction? yoo o o OBO 1. Out of page 2. Toward the left edge of the page 3. None of these 4. Toward the top edge of the page 5. Toward the right edge of the page 6. Toward the bottom edge of the page Find the period T of oscillation; i.e., the 7. Into page time it takes for the particle to complete one revolution. 010 10.0 points A circular coil consisting of a single loop of 1. T = 21 - m B wire has a radius of 44.3 cm and carries a current of 27.1 A. It is placed in an external 2. T = m magnetic field of 0.143 T. q B 2 TT m Find the magnitude of the torque on the 3. T = wire when the plane of the coil makes an 4. T - m B angle of 53.80 with the direction of the field. Answer in units of N . m. q 5. T- q B m 011 10.0 points q B An 6.13 m long copper wire with a cross- 6. T - 21 m sectional area of 0.0001131 m, in the shape of a square loop, is connected to a 0.1073 V 014 10.0 points battery. The resistivity of copper is 2.8 x 1078 0 m. A negatively charged particle moving paral- If the loop is placed in a uniform magnetic lel to the r-axis enters a magnetic field (point- field of magnitude 0.373 T, what is the maxi- ing toward the top of the page), as shown. i is mum torque that can act on it? in the x-direction, j is in the y-direction, and Answer in units of N m. k is in the z-direction. 012 10.0 points An electron is accelerated by a 5.3 kV poten- tial difference