A 2.00-T magnetic field is applied perpendicular to the path of charged particles in a bubble chamber. What is the radius of curvature of the path of a 10 MeV proton in this field? Neglect any slowing along its path.

The decay of a current is given by the relationship  i = Ie^(-Rt/L) Calculate the charge decay between t=0 and 0.1 seconds given that: I is 0.3 Amps R is 130  L is 1.4

A 0.7 mm diameter superconducting wire is composed of half copper and half superconductor. At 3.2 T it is capable of carrying 2110 Amps. Assume 4.5 cm of that wire slides perpendicularly to the magnetic field due to the Lorentz forces. How far, in meters, did the wire slide to generate 0.002 J heat, assuming all the frictional energy was converted to heat in the section of wire?

A cylinder with a(n) 1.6 cm radius and a length of 3.9 m is tightly wrapped with 4000 turns of wire. The current in the wire is decaying according to I = Io eat, with Io = 1.1 A and a = 4.3s-¹. What is the electric field at a point 5.9 cm radially from the axis of the cylinder at t = 0.581395 s? Answer in units of V/m. A coil of 320 turns and radius 9.5 cm is con- centric with and in the central plane of the cylinder. How much power is being dissipated at t = 0.348837 s in a 80 2 resistor connected across the ends of the coil? Answer in units of W.

Suppose a cyclotron is operated at an oscillator frequency of 11.2 MHz and has a dee radius 41.9 cm. Estimate the total path length traveled by a deuteron in the cyclotron during the (entire) acceleration process. Assume that the accelerating potential between the dees is 60.4 kV. The deuteron mass is m = 3.34 × 10-27 kg.

Applying x-rays for diagnosis or therapy requires a good understanding of the effects the radiation causes in biological tissue. A lead apron that would stop 3⁄4 of the radiation would already provide passable protection. Find thickness of the apron, if lead mass attenuation coefficient for a radiationsource with an energy of 140 keV is μm = 2.32 cm2/g. Density of lead ρ = 11.35 g/cm3

In proton beam therapy, a beam of high-energy protons is used to deliver radiation to a tumor, killing its cancerous cells. In one session, the radiologist calls for a dose of 4.9 x 108 protons to be delivered at a beam current of 120 nA. How long should the beam be turned on to deliver this dose?

Protons enter a region of electric field where the potential difference between where the protons enter and exit is +5×106 volts (5 MV). Assuming the initial energy of the protons was negligible, how much energy does the proton gain? What if we had a fully ionized carbon-12 nucleus instead?

A deuteron is accelerated from rest through a 5-kV potential difference and then moves perpendicularly to a uniform magnetic field with B = 1.2 T. What is the radius of the resulting circular path? (deuteron: m = 3.3 x 10-27kg, q = 1.6 x 10-19C)

A 40.4-MeV proton moves in the horizontal plane in a region of vertically-directed magnetic field. Find the magnetic field magnitude if the proton experiences a 55.4 pN magnetic force.