Briefly explain the construction and
- briefly explain the principle construction and working of a manometer
- briefly explain the construction and characteristics of jfet
- briefly explain the construction and working of a pinhole camera
- briefly explain the construction and working of a hydraulic brake
- briefly explain the construction and working of hydroelectric power plant
- briefly explain the construction and working of a francis turbine
- briefly explain the construction and working principle of a jfet
- briefly explain the construction and working of an electric bell
