100mV

100mV refers to one hundred millivolts, a unit of electrical potential difference. A volt (V) is the standard unit of electromotive force or electric potential difference in the International System of Units (SI). A millivolt (mV) is one-thousandth of a volt. Therefore, 100mV is equivalent to 0.1 volts.

This voltage level is quite small and is often encountered in various electrical and electronic contexts. For example, in electronics, it can be the output of a weak sensor signal, a small bias voltage for a transistor, or a noise level in a circuit. In biology, the resting membrane potential of many cells is in the range of tens of millivolts, with nerve cells often exhibiting potentials around -70mV. Changes in this potential are fundamental to nerve impulse transmission.

In electrical measurements, a multimeter set to its millivolt range is used to accurately measure such small voltages. While 100mV is generally not a dangerous voltage for humans, it is sufficient to be detected by sensitive electronic components or biological systems. The significance of 100mV is entirely dependent on the specific application and the characteristics of the circuit or system in which it is present.