Correct Answer - Option 1 : Electromagnetic deflection
Concept:
- A television receiver (TV receiver) is a device that combines a tuner, display, loudspeaker to view and hear television broadcasting through satellite or cable.
- In a TV receiver CRT (Cathode Ray Tube) is responsible for the deflection of the beam, and the beams are bent by magnetic deflection.
- A varying magnetic field is generated by the coil and driven by an electronic circuit around the neck of the tube responsible for beam deflection.
So in the TV receiver electron beam is deflected by Electromagnetic deflection.
Option 1 correct choice.
More information:
Electrostatic deflection refers to a technique for modifying the path of a beam of a charged particle by the use of an electric field. applied transverse to the path of the particle.
Lorentz force I,e. F = qE + qV × B is responsible for electrostatic deflection.
q = charge, V = velocity, E = electric field, B = Magnetic field.
Electrostatic deflection is mainly used for small screen therefore not suitable for the CRT used in TV receivers.
