An electron beam travelling through a cathode ray tube is subjected to simultaneous electric and magnetic fields. The electrons emerge with no deflection. Given that the potential difference across the parallel plates X and Y is 3.0 kV, and that the applied magnetic field is of strength 1.6 × 10-3 T, calculate the distance between the plates.

A charge of 1.2 C having an initial velocity of = 3.91+3.3 m/s enters a region with an electric field È = 3.1î N/C and a magnetic field B = 3.71+4.2k T. Calculate the magnitude of the force on the charge immediately after it enters the region. Express your answer in Newtons (write just the value, not the unit), rounding to one digit after the decimal separator. Add your answer Continue

A 25 cm rod moves at 2.4 m/s in a plane perpendicular to a magnetic field of strength 0.36 T. The rod, velocity vector, and magnetic field vector are mutually perpendicular, as indicated in the accompanying figure. 25 cm (a) Calculate the magnetic force on an electron in the rod (in N). (Enter the magnitude.) (b) Calculate the electric field in the rod (in V/m). (Enter the magnitude.) V/m (c) Calculate the potential difference between the ends of the rod (in V). V (d) What is the speed of the rod (in m/s) if the potential difference is 1.0 V? m/s

A positive charge traveling with a speed of 9,678 m/s enters the deflection chamber of a mass spectrometer. In the deflection, chamber exists a uniform magnetic field of 0.55 T. The charge undergoes a deflection with a radius of curvature that is 0.024 m. If the charge is 1.602 x 10-19 C, what is its mass in atomic mass units*?