Flash Cards

E6C07

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

• A. A resistor connected to the positive or negative supply used to establish a voltage when an input or output is an open circuit
• B. A resistor that ensures that an oscillator frequency does not drift
• C. A resistor connected to an op-amp output that prevents signals from exceeding the power supply voltage
• D. A resistor in a keying circuit used to reduce key clicks