Consider the two idealized systems: (i) a parallel plate capacitor with large plates and small separation and (ii) a long solenoid of length L >> R, radius of cross-section. In (i) E is ideally treated as a constant between plates and zero outside. In (ii) magnetic field is constant inside the solenoid and zero outside. These idealised assumptions, however, contradict fundamental laws as below:
1
case (i) contradicts Gauss’s law for electrostatic fields.
2
case (ii) contradicts Gauss’s law for magnetic fields.
3
case (i) agrees with \(\oint\limits {E.dl =0} \).
4
More than one of the above
5
None of the above