Plasma-I wc

Which of the following example of plasma in our everyday lives

• The flash of a lightning bolt

• The conducting gas inside a florescent tube

• The slight amount of ionization in a rocket exhaust

• All of the above

A charged particle moving in a uniform electric field and magnetic field will follow a

• spherical path      

• circular path        

• cylindrical helix path 

• straight path

The drift velocity of a charge in an electric placed perpendicular to a uniform magnetic is

• parallel to both electric and magnetic field

• perpendicular to both electric and magnetic field

• along the electric field

• along the magnetic field

The sinusoidal varying electric field (E) along the x direction can be represented as

A Van Allen belt is a zone of energetic charged particles found in the

• Sun     

• Moon  

• Earth

• Star