Question
Download Solution PDFWhich device is used to measure the current flow using needle deflection caused by a magnetic field force acting upon a current - carrying wire?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFKey Points
- A Galvanometer is an instrument for detecting and measuring electric current by needle deflection.
- The deflection is caused by a magnetic field force acting upon a current-carrying wire within the device.
- It is a type of sensitive ammeter and can measure small currents accurately.
- Galvanometers are widely used in various applications including in analog meters and in the calibration of other instruments.
Additional Information
- The Galvanometer was named after Luigi Galvani, who discovered the principle of the device.
- It operates on the principle of electromagnetism, where an electric current creates a magnetic field.
- There are different types of galvanometers, including the moving coil and moving magnet types.
- Modern digital multimeters have largely replaced galvanometers for many applications but they are still used in specific scientific experiments and educational settings.
Last updated on May 28, 2025
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