Concepts Of Physics MCQ Edition [Volume 2]
- Exam
- Concepts Of Physics MCQ Edition [Volume 2]
- Subject
- Physics
- Chapter
- Magnetic Field due to a Current
Concepts Of Physics MCQ Edition [Volume 2] · Physics · Magnetic Field due to a Current
A proton beam travels from north to south, and an electron beam...
A proton beam travels from north to south, and an electron beam travels from south to north. Neglecting the magnetic field of the earth, the electron beam will be deflected
Options
- Atowards the proton beam
- Bdownwards
- Cupwards
- Daway from the proton beam
Correct answer
A. towards the proton beam
Step-by-step solution
The direction of electric current is taken as the direction of flow of positive charge.
The proton beam travels from north to south, so the current due to it is from north to south.
The electron beam travels from south to north. Since electrons are negatively charged, the current due to the electron beam is opposite to its direction of motion, which is also from north to south.
Both beams represent parallel currents flowing in the same direction.
Since parallel currents in the same direction attract each other, the electron beam will be deflected towards the proton beam.
The proton beam travels from north to south, so the current due to it is from north to south.
The electron beam travels from south to north. Since electrons are negatively charged, the current due to the electron beam is opposite to its direction of motion, which is also from north to south.
Both beams represent parallel currents flowing in the same direction.
Since parallel currents in the same direction attract each other, the electron beam will be deflected towards the proton beam.