When a current-carrying wire is placed in a magnetic field, it experiences a force. This force is due to the interaction between the magnetic field produced by the current in the wire and the external magnetic field. The magnitude of the force is given by $F = I L B \sin(\theta)$, where $I$ is the current, $L$ is the length of the wire, $B$ is the magnetic field strength, and $\theta$ is the angle between the wire and the magnetic field. This principle is fundamental in electric motors and other electromagnetic devices.
In this lab activity, you'll explore how changing the current, magnetic field strength, and the angle between the wire and the magnetic field affects the force on the wire. Get ready to dive in and see electromagnetism in action!
Match the terms with their definitions:
| Term | Definition |
|---|---|
| 1. Magnetic Field | A. The rate of flow of electric charge. |
| 2. Current | B. A region around a magnet or current-carrying wire where magnetic forces are exerted. |
| 3. Ampere | C. The force exerted on a current-carrying wire by a magnetic field. |
| 4. Magnetic Force | D. The SI unit of electric current. |
| 5. Tesla | E. The SI unit of magnetic field strength. |
Complete the following paragraph with the correct terms:
The force on a current-carrying wire in a magnetic field is proportional to the __________, the length of the wire, and the strength of the __________ field. The direction of the force is given by the __________-hand rule. If the wire is __________ to the magnetic field, the force is maximum.
Explain how the principle of magnetic force on a current-carrying wire is applied in the functioning of an electric motor.
Please log in to post your answer.
Log InEarn 2 Points for answering. If your answer is selected as the best, you'll get +20 Points! 🚀