In which type of devices does current lag voltage?

Current lagging voltage is a characteristic phenomenon observed in inductive devices. In such devices, the magnetic field generated by the inductance causes the current to take time to build up after the voltage is applied. This time delay leads to a phase difference where the current waveform reaches its peak value later than the voltage waveform does, resulting in the current lagging behind the voltage.

In contrast, capacitive devices exhibit the opposite behavior, with current leading voltage. Resistive devices maintain the current and voltage in phase with each other, resulting in no phase difference. Transformative devices can encompass both inductive and capacitive behaviors, depending on their design and usage, but the key characteristic of current lagging voltage is specifically attributed to inductive devices. Thus, understanding the properties of inductive devices is crucial in electrical engineering and applications involving alternating current (AC) circuits.