Answer the question that follows.
Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the front wall, is deflected by a strong magnetic field to your right side. What is the direction of magnetic field?
Answer:
The electron beam travels horizontally from the back wall towards the front wall and is deflected towards your right side due to the magnetic field. The direction of conventional current is . Therefore, the current flows . Since the electron beam is deflected towards your right side, the direction of force is .
Hence, the magnetic field is directed .
The direction of the magnetic field, force and current can be determined by the.
Hence, according to , the thumb represents the and the middle finger represents the , then the will be given by the direction of the forefinger.