Current

A capacitor has capacitance 4 `microC/Volt. It is placed in series with a resistance of 48 Ohms and 25 volt source. When the current in the circuit has built a charge of 67 `microC on the capacitor, how much current will be flowing through the circuit?

Potential Energy

Estimate, based on the force at the initial and final points, the change in the Potential Energy of a system as the second charge moves to the point (.02475 m,0,0), assuming a stationary charge of -65.07 `microC located at the origin, if the second charge of -100.2 `microC is initially located at the point (.045 m,0,0).

Force - potential gradient of 12 volts/m exists between two points...

If a potential gradient of 12 volts/m exists between two points separated by .8 meters parallel to the gradient, what is the voltage between the points? How much work will be done on a charge of 42 Coulombs as it moves between these points? What therefore is the average force on the charge? Repeat these calculations for the s ...continues

Electrostatic Flux

What is the electrostatic flux of a field of magnitude 6 N/C through a circular region with radius 9.2 meters, if the field makes an angle of 25 degrees with a perpendicular to the plane of the region?

Energy

A certain hypothetical atom contains 50 protons and 64 neutrons in its nucleus and has an atomic mass of ( 114 - .05 ) atomic mass units, or amu (an amu is approximately 1.66 * 10^-27 kg; a proton mass is about 1 + .00073 amu, neutron mass about 1 + .00087 amu). What is the mass defect of this atom? What is the energy equivalent ...continues

Magnetic Field

Find the strength of the magnetic field due to a straight current segment of length .086 m, at a distance of 7.4 meters from the segment, provided that the vector from the segment to the point is perpendicular to the segment, and that a current of 4.4 Amps flows in the segment.

Force

What will be the force on a segment of wire 12 cm long, carrying a current of 8 amps, in the presence of a .0067 Tesla magnetic field directed perpendicular to the segment? If the current is directed toward the North and the magnetic field vertically upward, what will be the direction of this force?

Orbital Velocity

Suppose an electron could orbit a proton at a constant distance of 1.11 Angstroms, with the the centripetal force coming from the Coulomb attraction between proton and electron. • What would be its orbital velocity, orbital KE, electrostatic PE relative to infinite separation, and total energy? • What would be its deBroglie ...continues

Atoms

(See attached file for full problem description) --- The table below shows masses, in atomic units, of various neutral isotopes of several elements. If an atomic mass unit is 1.660502 * 10^-27 kg, if a proton has mass 1.0007276 amu and a neutron mass 1.0008665 amu, and if a neutral hydrogen atom has mass 1.0007825 amu, what ...continues

Vectors

Please see the diagram in the attached file.