Amateur Extra · FCC ELEMENT 4

E6C07

Amateur Extra · FCC Element 4 · answer reveals automatically

What best describes a pull-up or pull-down resistor?

AnswerA resistor connected to the positive or negative supply used to establish a voltage when an input or output is an open circuit

A pull-up or pull-down resistor connects a signal to a supply rail so the line assumes a defined voltage when no active device is driving it.