Question: Explain why pull - down resistors are important and what value should be used for a pull - down resistor if the input is 5

Explain why pull-down resistors are important and what value should be used for a pull-down resistor if the input is 5 volts DC. What wattage should this resistor be? Please also explain why pull-up resistors are important and what value should be used for a pull-up resistor if the input is 5 volts DC. What wattage should this resistor be? Draw an example of each being used in a circuit below.

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