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Voltage and Current Instruments
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Clamp Meter
An electrical tester that combines a basic digital multimeter with a current sensor for high current measurements in a wire without the need for disconnection.
Ohmmeter
A device used to measure the resistance of a component or circuit.
Oscilloscope
An instrument that graphically displays varying signal voltages, usually as a two-dimensional plot of one or more signals as a function of time.
Galvanometer
An analog instrument for detecting and measuring small electric currents by deflection of a moving coil in a magnetic field.
Voltmeter
A device used to measure the potential difference between two points in an electric circuit.
Ammeter
An instrument used to measure the electric current in a circuit.
Multimeter
A multi-function instrument designed to measure voltage, current, and resistance, among other parameters.
Wattmeter
A device used to measure the power (in watts) in an electric circuit through the product of current and voltage.
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