1. | the \(y\)-component of the magnetic field \(=0\) |
2. | the \(x\)-component of the magnetic field \(=0\) |
3. | the \(x\)-component of the magnetic field is zero, only at the origin. |
4. | the \(y\)-component of the magnetic field is zero, only at the origin. |
1. | ![]() |
2. | ![]() |
3. | ![]() |
4. | ![]() |