What is the radius of curvature of the path of a 3.0-keV proton in a perpendicular magnetic field of magnitude 0.80 T?
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- A 180 V battery is connected across two parallel metal plates of area 28.5 cm2cm2 and separation 7.20mm. A beam of alpha particles (charge +2e+2e, mass 6.64×10-27kg6.64×10-27kg) is accelerated from rest through a potential difference of 1.50 kV and enters the region between the plates perpendicular to the electric field, What magnitude of magnetic field is needed so that the alpha particles emerge undeflected from between the plates? Express your answer with the appropriate units. What is the direction of this magnetic field? The magnetic field is directed out of the page. The magnetic field is directed upward. The magnetic field is directed into the page. The magnetic field is directed downward.A proton is moving under the combined influence of an electric field (E = 1747 V/m) and a magnetic field (B = 1.37 T), as shown in the figure. Assuming the proton is moving in the direction shown in the figure with speed 229 m/s at the instant it enters the crossed fields, what is the acceleration of the proton? (in m/s^2)Problem 5: An electron (q= -e = -1.60 × 10-19 C and me = 9.11 × 10-31 kg) in a cathode-ray tube is accelerated through a potential difference of 10 kV. Thus, the electron leaves the cathode-ray tube with a speed v = 5.93 × 107 m/sec. The electron then passes through the 2.0 cm wide region of uniform magnetic field (shown in the Figure above on the right). What field strength will deflect the electron by 10°? Answer: B = 0.0029 T. OV 10 kV 2.0 cm 10°
- If an electron that’s entering a magnetic field B=2.0 with a velocity of V =2.0x10^7 m/s parallel to B experiences a magnetic force F b= ????An electron is accelerated through 2500 V from rest and then enters a region where there is a uniform 1.60 T magnetic field. What are the maximum and minimum magnitudes of the magnetic force acting on this electron?An electron of kinetic energy 41.5 keV moves in a circular orbit perpendicular to a magnetic field of 0.645 T. Find the radius of the orbit.Find the period of the motion.