what can you contribute to the conservation of electricity?

0.1 Give a short answer for only Six of the following 1. Explain the construction of turbine meter and mention for what we use it. 2. Mention the Applications of Pyroelectric sensors. 3. Explain briefly Hall effect sensor's application by measuring the fluid level in a container. 4. Explain how could we use potentiometer to measure linear displacement and angular displacement. 5. According to electrical circuits and electric fundamentals what's the evident difference between Eddy current proximity sensor and Inductive proximity sensor? 6. What's the purpose of putting an inner track with only one hole in optical sensor? 7. What's the reason behind using Wheatstone bridge with strain gauge sensor?

Which of the following is NOT a variable in voltametric methods? A. How the current is applied B. How the potential is applied C. The inclusion of convection D. All the above     E. Type of working electrode