Speaker
Arvind Arvind
Description
We measure current in an open AC circuit generated by connecting capacitors which act as charge sinks to the open end of the circuit. In the infinite capacitance limit, the current is the same as for a closed circuit. This demystifies the concept of Earth'' or ground in a circuit. A neon lamp is used to measure these small currents non-invassively. The setup can be used to demonstrate the current in open circuits, the concept ofEarth'' in circuits, and to measure very small capacitances associated with single conductors. This experiment is appropriate for an undergraduate physics laboratory.
| Education level | Age over 18 (excluding teacher education) |
|---|---|
| Physics topic | Contemporary and modern physics |
| Research focus | Lab experiments |
| Research method | Innovative research strategies (Try-out) (Qualitative research) |
| Organizing preference criteria | Track |
Authors
Arvind Arvind
Dr
Paramdeep Singh
(Indian Institute of Science Education and Research Mohali)
