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Randhawa-Global Voltmeter

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Pack of 3 piece
₹1,887   ₹2,199
You save ₹312!
14.19% OFF
RANDHAWA GLOBAL Voltmeter, Ammeter and Galvanometer, RG-C3MTR (Pack of 3 Pcs) is a device used to measure the voltage, or electric potential difference, between two points in an electrical circuit. It is connected in parallel with the component or part of the circuit whose voltage is to be measured. Voltmeters are designed to have a very high resistance (ideally infinite) so that they draw minimal current from the circuit, preventing any significant disruption to the circuit's operation. Voltmeters are calibrated in units of volts (V) and can measure both AC (alternating current) and DC (direct current) voltages.
Ammeter:
An ammeter is an instrument used to measure the electric current flowing through a circuit. It is connected in series within the circuit, so all the current passes through the ammeter. Ammeters are designed with a low resistance to minimize the voltage drop across the instrument. When measuring current, it's crucial to select an ammeter with an appropriate current range, as exceeding this range can damage the instrument and create a safety hazard. Ammeters are calibrated in units of amperes (A) or milliamperes (mA) for smaller current measurements.
Galvanometer:
A galvanometer is a sensitive instrument used to detect and measure small electric currents. It serves as the basis for both voltmeters and ammeters. A galvanometer typically consists of a coil of wire suspended within the field of a permanent magnet. When current flows through the coil, it experiences a torque that causes it to rotate. The angle of rotation is proportional to the current passing through it. Galvanometers can be calibrated to measure either voltage (by connecting a high resistance in parallel with the coil to convert it into a voltmeter) or current (by connecting a low resistance in series with the coil to convert it into an ammeter). The sensitivity of a galvanometer is determined by its design and can be adjusted by varying the strength of the magnetic field or the coil's resistance.
In summary, voltmeters are used to measure voltage, ammeters measure current, and galvanometers serve as the basis for both voltmeters and ammeters. These instruments are vital for understanding and monitoring electrical circuits, ensuring their proper operation, and troubleshooting electrical systems.
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₹44,099 ₹54,600
19.23% OFF

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This data was last updated on 17/03/2026