Answer:
the right-hand rule is a useful tool for determining the direction of vectors in 3D space in physics.
Step-by-step explanation:
1. Identify the vectors whose direction you need to determine. For instance, if you want to determine the direction of a magnetic field, then you will need to use the magnetic field vector.
2. Hold your right hand in front of you with your thumb pointing in the direction of the positive y-axis.
3. Then, turn your hand so that your index finger points in the direction of the first vector, which in this case is the magnetic field.
4. Curl your fingers in the direction of the second vector, which in this case could be the direction of current or force.
5. The direction that your thumb is pointing represents the direction of the resulting vector, which could be the direction of force or current.
By using the right-hand rule, you can quickly determine the direction of vectors in a 3D coordinate system. It is a straightforward and useful technique that is widely used in physics and engineering.