Frequently Asked Questions of Resistors in Series
Q 1: What will happen if we have multiple resistors in a series but one of them fails?
In a series circuit, if one component fails or opens (has infinite resistance), the entire circuit becomes open, which will spoil the whole circuit and current cannot flow through any component.
Q 2: Can we use series resistance to control the current in a circuit?
Yes, series resistance can be used to limit or control the amount of current to flow in a circuit, as shown in the LED string example above.
Q 3: How to find the total power dissipation in a series circuit?
For power dissipation in a series circuit, use the formula
P = I2 * R,
where,
I is the current flowing through the resistor and
R is the resistance of the component.
Q4. What will be the total resistance if we add more resistance to the circuit?
In series the total resistance is the sum of all the individual resistors the newly added resistance will add up in total resistance and the total resistance will increase.
Q5. How is the current through each resistor related to the total current supplied by the battery in the series circuit?
In series, the amount of current passing through each resistor is equal to the total current supplied.
Resistors in Series
Resistors are devices that obstruct the flow of electric current in the circuit. They provide the hindrance to the path of the current which flows in the circuit.
A resistor is a two-terminal electrical component that works by reducing the flow of charge and voltage levels in the circuit. Most of the circuits have one or more resistors to oppose the flow of current and balance the circuit. Most commonly there are two combinations of resistors – Resistors in Series and Parallel.
Contact Us