Electron Deflection in Electric and Magnetic Fields

Description

The Electron Deflection in Electric and Magnetic Fields apparatus is designed to study the motion of an electron beam under the influence of electric and magnetic fields. The experiment enables students to observe electron beam deflection, determine the radius of the circular electron path, and calculate the specific charge (e/m) of the electron. It provides a practical understanding of charged particle motion and the interaction of electrons with electric and magnetic fields. Manufactured by Atico Export India.

Principle

Electrons emitted from an electron gun are accelerated by an anode voltage and travel through a vacuum tube. When subjected to an electric field, the electron beam is deflected due to the electrostatic force. When placed in the magnetic field generated by Helmholtz coils, the electrons follow a circular path due to the magnetic force. By measuring the beam radius for different operating conditions and relating it to the applied anode voltage and magnetic field strength, the specific charge (e/m) of the electron can be determined experimentally.

Objectives

• Study the deflection of electrons in electric fields.
• Study the deflection of electrons in magnetic fields.
• Observe the circular motion of electrons in a magnetic field.
• Measure the radius of the electron beam trajectory.
• Determine the specific charge (e/m) of the electron.
• Investigate the effect of anode voltage and magnetic field strength on electron motion.

System Components

Electron Deflection Tube :

• Quantity: 1

Tube Stand :

• Quantity: 1

Pair of Helmholtz Coils :

• Quantity: 1

High Voltage Power Supply :

• Output: 10 kV
• Quantity: 2

DC Power Supply :

• Output: 0 to 16 V, 0 to 5 A
• Quantity: 1

Safety Connecting Lead :

• Length: 25 cm
• Color: Red
• Quantity: 2

Safety Connecting Lead :

• Length: 50 cm
• Color: Red
• Quantity: 1

Safety Connecting Lead :

• Length: 50 cm
• Color: Blue
• Quantity: 1

Safety Connecting Lead :

• Length: 100 cm
• Color: Red
• Quantity: 2

Safety Connecting Lead :

• Length: 100 cm
• Color: Blue
• Quantity: 4

Safety Connecting Lead :

• Length: 100 cm
• Color: Black
• Quantity: 2

Electron Deflection Tube :

• Provides a clear visualization of the electron beam path.

Electric Field Demonstration :

• Variable deflection voltage enables study of electrostatic beam deflection.

Magnetic Field Demonstration :

• Helmholtz coils generate a uniform magnetic field for circular electron motion.

High Voltage Operation :

• High-voltage power supplies provide stable electron acceleration.

Accurate Experimental Measurements :

• Enables determination of the specific charge (e/m) of the electron.

Educational Design :

• Ideal for studying charged particle motion, electromagnetism, and electron dynamics.