Question
Download Solution PDFThe instrument _________ is used for detecting electric current is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Galvanometer:
- A galvanometer is used for detecting current in an electric circuit.
- The galvanometer is the device used for detecting the presence of small currents and voltage or for measuring their magnitude.
- The galvanometer is mainly used in the bridges and potentiometer where they indicate the null deflection or zero current.
- The potentiometer is based on the premise that the current sustaining coil is kept between the magnetic field experiences a torque.
EXPLANATION:
- From the above, it is clear that the galvanometer is the instrument used for detecting the presence of electric current in a circuit. Therefore option 1st is correct.
Additional Information
| Instrument | Used to |
| Altimeter | Measure the altitude of an object. |
| Tube tester | Used to test characteristics of vacuum tubes. |
| Fathometer | Measure the depth of water. |
Difference between Ammeter and Galvanometer:
- The ammeter shows only the magnitude of the current.
- The galvanometer shows both the direction and magnitude of the current.
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