Someone's normal heart rate depends on things like the person's age and whether he or she leads an active lifestyle. The resting heart rate decreases as people get older. Typical normal resting heart rate ranges are: babies (birth to 3 months of age): 100â150 beats per minute.
Part of the Electronics glossary: A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit. Resistors can also be used to provide a specific voltage for an active device such as a transistor. All other factors being equal, in a direct-current (DC) circuit, the current through a resistor is inversely proportional to its resistance, and directly proportional to the voltage across it.
Resistors in series: When used in series, resistors can be said to be a âvoltage dividing network.â This is because in a series circuit, current flowing through each resistor is the same value but the voltage present across each resistor is only part of the total circuit voltage value.