Electricity and Magnetism Answers

A proton (mass m, charge +e) and an alpha particle (mass 4m, charge +2e) approach one another with the same initial speed v from an initially large distance. How close will these two particles get to one another before turning around?

a) Plot currents through the capacitor and the inductance of a series RLC circuit at resonance on

the same graph as functions of time. (b) What is the phase difference between the current and the

total voltage at frequency w>w0 , such that current amplitude is Imax/√2 ?

a) Plot currents through the capacitor and the inductance of a series RLC circuit at resonance on

the same graph as functions of time. (b) What is the phase difference between the current and the

total voltage at frequency   0 , such that current amplitude is Imax/√2 ?

An Electron enters perpendicularly into a uniform magnetic field which has a flux density of 0.12T. This results in a magnetic force of 9.6x10-12N on the electron. Calculate the speed of the electron as it enters the magnetic field. [ e=1.6x10-19 C]

A long straight wire carries a current 1.5A. an electron travels with a speed of 5*10^6cm/sec parallel to the wire 10cm from it and in the same direction as the current. What force does the magnetic field of the current exert on the moving electron

Two long parallel wires are 10cm apart and carry currents of 6A and 4 A. What is the field at B at 4A carrying wire due to 6A wire

Only certain materials can be magnets. What does it depend on?

A current 5A passes through a straight wire in a uniform magnitude field of a flux density of 2.0x10-3 T. Calculate the force per unit length exerted on the wire when it is inclined at 30° to the field.

Magnetic field and Ampere’s law assignment

Two long parallel wires are 10 cm apart and carry currents of 6 A and 4 A. what is the field B at 4 A carrying wire due to 6 A wire.

A long straight wire carries a current of 1.5 A. an electron travels with a speed of 5 x 106 cm/s parallel to the wire 10 cm from it and in the same direction as the current. What force does the magnetic field of the current exert on the moving electron.

Calculate the momentum of a particle knowing that its wavelength is 10.13 x 10^-5 m.