A device used for the measurement and detection of current is called:
Correct answer: B. Galvanometer
- A. Ammeter
- B. Galvanometer
- C. Voltmeter
- D. All of the above
Explanation
A galvanometer is a sensitive instrument used to detect and measure small electric currents. It operates based on the principle of electromagnetic induction or the interaction between a magnetic field and an electric current. Galvanometers are often used as the basis for ammeters and voltmeters. In ammeter configuration, a shunt resistor is placed in parallel with the galvanometer to extend its range for measuring larger currents.
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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