Which device can be employed to measure current in a circuit without interrupting the connection?

Which device can be employed to measure current in a circuit without interrupting the connection?

• A. Multimeter
• B. Clamp on Meter
• C. Oscilloscope
• D. Resistance Meter

Answer: (B)

The device that can measure current in a circuit without interrupting the connection is known as a clamp-on meter. This tool works by utilizing the principle of electromagnetic induction. When the clamp is placed around a conductor carrying current, it detects the magnetic field generated by the flow of electricity. This allows the clamp-on meter to provide a reading of the current without needing to disconnect the circuit, making it particularly useful for troubleshooting or monitoring circuits while they remain live. Other options include devices that serve different purposes or require interruption of the circuit. A multimeter can measure current, but it typically requires the circuit to be opened to insert the probes in series, disrupting the connection. An oscilloscope visualizes waveforms and is used mainly for observing voltage changes over time but does not measure current directly without additional current measurement probes and circuit interruption. A resistance meter measures the resistance in a circuit, which also requires disconnecting components to get an accurate reading. Hence, the clamp-on meter stands out for its ability to measure current seamlessly in live circuits.

The device that can measure current in a circuit without interrupting the connection is known as a clamp-on meter. This tool works by utilizing the principle of electromagnetic induction. When the clamp is placed around a conductor carrying current, it detects the magnetic field generated by the flow of electricity. This allows the clamp-on meter to provide a reading of the current without needing to disconnect the circuit, making it particularly useful for troubleshooting or monitoring circuits while they remain live.

Other options include devices that serve different purposes or require interruption of the circuit. A multimeter can measure current, but it typically requires the circuit to be opened to insert the probes in series, disrupting the connection. An oscilloscope visualizes waveforms and is used mainly for observing voltage changes over time but does not measure current directly without additional current measurement probes and circuit interruption. A resistance meter measures the resistance in a circuit, which also requires disconnecting components to get an accurate reading. Hence, the clamp-on meter stands out for its ability to measure current seamlessly in live circuits.