Question

In: Physics

An electron moves in crossed electric and magnetic fields on a spiral (helical) trajectory. What are...

An electron moves in crossed electric and magnetic fields on a spiral (helical) trajectory. What are the values of the respective magnetic and electric fields, so that the radius of a helix is 10cm, and its a pitch (vertical height of one complete helix turn) is 1 cm. Hint: approximate the motion as a circular motion is XY only due to magnetic field and motion in Z direction only due to electric field.

An electron moves in crossed electric and magnetic fields on a spiral (helical) trajectory. What are the values of the respective magnetic and electric fields, so that the radius of a helix is 1 cm , its a pitch (vertical height of one complete helix turn) is 10 cm and initial kinetic energy of the electron was 3 keV (kilo electron-volts). Hint: approximate the motion as a circular motion is XY only due to magnetic field and motion in Z direction only due to electric field.

Solutions

Expert Solution


Related Solutions

A proton travels through uniform magnetic and electric fields. The magnetic field is in the negative...
A proton travels through uniform magnetic and electric fields. The magnetic field is in the negative x direction and has a magnitude of 3.52 mT. At one instant the velocity of the proton is in the positive y direction and has a magnitude of 2600 m/s. At that instant, what is the magnitude of the net force acting on the proton if the electric field is (a) in the positive z direction and has a magnitude of 5.40 V/m, (b)...
A proton travels through uniform magnetic and electric fields. The magnetic field is in the negative...
A proton travels through uniform magnetic and electric fields. The magnetic field is in the negative x direction and has a magnitude of 3.50 mT. At one instant the velocity of the proton is in the positive y direction and has a magnitude of 1830 m/s. At that instant, what is the magnitude of the net force acting on the proton if the electric field is (a) in the positive z direction and has a magnitude of 5.10 V/m, (b)...
An electron follows a helical path in a uniform magnetic field of magnitude 0.447 T. The...
An electron follows a helical path in a uniform magnetic field of magnitude 0.447 T. The pitch of the path is 4.88 μm, and the magnitude of the magnetic force on the electron is 1.64 × 10-15N. What is the electron's speed? ASAP
Consider a single coil carrying a current I. a. What are the electric and magnetic fields...
Consider a single coil carrying a current I. a. What are the electric and magnetic fields at the center of the coil? b. Now suppose the coil is moving at a speed v perpendicular to its axis. What are the electric and magnetic fields at the center of the coil? c. What is the physical origin of the electric field you just found? Where are the charges?
Compare and contrast Ampere's law for magnetic fields to Gauss's law for electric fields (how they...
Compare and contrast Ampere's law for magnetic fields to Gauss's law for electric fields (how they are similar, how they are different). Include in your discussion why Gauss's law for magnetic fields is not very useful. Please be detailed in your response and demonstrate mastery of the concept of Ampere's law and how it is used.
An electron is accelerated through potential difference of 350V. Electron enters magnetic field and moves in...
An electron is accelerated through potential difference of 350V. Electron enters magnetic field and moves in the circle with the radius of 7.5cm. a) What is the magnitude of the field? b) What is the angular speed of electron? c) What is the period of revolution of the electron?
An electron moves in a circular path perpendicular to a uniform magnetic field with a magnitude...
An electron moves in a circular path perpendicular to a uniform magnetic field with a magnitude of 2.14 mT. If the speed of the electron is 1.48 107 m/s, determine the following. (a) the radius of the circular path ............ cm (b) the time interval required to complete one revolution ............ s
Chapter 6: What is electric and magnetic force? What is the application for electric and magnetic...
Chapter 6: What is electric and magnetic force? What is the application for electric and magnetic force? What is electric current and how digital devices work? How do we store electrical energy? How microphone works? How MRI works? Why microwave can warm your food? What is an Electric motor? What is Superconductivity? How magnetic levitation works? Chapter 7: Types of Waves Properties of Waves Behaviour of Waves: - light - Sound - Sound in the atmosphere - Earthquakes waves
10. Obtain the expressions of electric and magnetic fields by performing the mode analysis for TM...
10. Obtain the expressions of electric and magnetic fields by performing the mode analysis for TM mode in two-side triangular cross-section transmission pipes. Find the attenuation for the dominant mode.
An electron moves with velocity of 6.0x106 m/s perpendicular to a magnetic field facing out of...
An electron moves with velocity of 6.0x106 m/s perpendicular to a magnetic field facing out of the page. The circular path of the electron has radius of 3 mm. (a) draw sketch of the magnetic field and path of electron. Determine (b) the magnitude of the B field, (c) acceleration of the electron (me= 9.11x10-31 kg, e=60x10-19 C). When a magnetic flux through 5 loops of wire increases by 30.0 T.m2, an average current of 40.0 A is induced in...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT