How is a voltmeter connected to a component to measure applied voltage?
In series
In parallel✓الإجابة الصحيحة
In quadrature
In phase
الشرح
A voltmeter reads the potential difference between its two probes, so it must be placed across the component, in parallel with it, to see the voltage that appears there. Putting it in series would instead insert its very high internal resistance into the circuit.