What can be the cause of helical motion of a charged particle class 12?

Hint: When a charged particle moves inside a magnetic field, it experiences a force which is perpendicular to both the magnetic field and velocity. This force helps the particle maintain a circular motion. …

What causes a charged particle to move?

Magnetic forces can cause charged particles to move in circular or spiral paths. Particle accelerators keep protons following circular paths with magnetic force. Cosmic rays will follow spiral paths when encountering the magnetic field of astrophysical objects or planets (one example being Earth’s magnetic field).

Why does the electron move in a helical path?

The electrons move on helix trajectories. Reason therefor is, that the inital speed v0 is not perpendicular to the magnetic field B. v⊥ causes the orbital motion, v∥ causes a motion in the direction of the magnetic field. So the electrons drift on a helix trajectory.

Which component of velocity vector is responsible for helical motion?

Two components of velocity vector →V are responsible for the helical motion. Force on the charged particle due to the component normal to the magnetic field acts perpendicular to the velocity and the magnetic field and makes the porticle follow a circular path.

What is helical motion class 12?

When a charged particle enters in a magnetic field at an angle other than 90o then a component of velocity takes it under linear motion and other component , under circular motion ,and the combined effect is a helical motion .

What must the initial state of motion of a charged particle be if it will follow a helical path in a uniform magnetic field?

3. What must the initial state of motion of a charged particle be if it will follow a helical path in a magnetic field? a) It must be moving at an angle that is neither parallel to nor perpendicular to the magnetic field.

What force causes the rod to become charged?

friction
When a polythene rod is rubbed with a duster, the friction causes electrons to gain energy. Electrons gain enough energy to leave the atom and ‘rub off’ onto the polythene rod. The polythene rod has gained electrons, giving it a negative charge. The duster has lost electrons, giving it a positive charge.