in my perspective, the resistor limits the current that flows through the switch.......without the resistor, closing the switch would cause a short circuit that could damage the power supply of the circuit and would cause all the current that flows through the circuit to flow through the short (NOTE: current takes the path of least resistance)
also, when the switch is closed, the voltage across the reset pin is zero, since there is a wire across it (NOTE: the voltage across an ideal wire is zero).......this causes the reset pin to be low (less than 0.7V)
hope this helps........
also, when the switch is closed, the voltage across the reset pin is zero, since there is a wire across it (NOTE: the voltage across an ideal wire is zero).......this causes the reset pin to be low (less than 0.7V)
hope this helps........