Tag Archives: multimeter

Answer: Megger is preferred over a multimeter for insulation testing because it applies a higher voltage, typically 500V or more, which is necessary to accurately assess the insulation resistance and detect potential faults. Reasoning: Insulation testing requires the application of a higher voltage to accurately measure the resistance of insulation …

Why Voltmeter is Always Connected in Parallel? Introduction In the realm of electrical measurements, voltmeters are indispensable tools used to measure voltage across various components in circuits. Whether you’re a seasoned electrician, an engineering enthusiast, or simply curious about electrical instruments, understanding why voltmeters are always connected in parallel is …

Answer: Electric testers may not work on DC current due to their design for AC detection. They rely on the alternating nature of AC to induce a magnetic field, causing a response. DC lacks this alternating flow, rendering the tester ineffective. Reasoning: Electric testers, such as non-contact voltage testers, are …