# How do you find the resistance of a resistor in a series circuit?

Table of Contents

- 1 How do you find the resistance of a resistor in a series circuit?
- 2 What is series connection resistance?
- 3 What voltage is necessary to supply a 3.0 a current through a 10 ohms resistor?
- 4 What is the voltage across each resistor connected in series?
- 5 How do you calculate the total resistance of a resistor?
- 6 What is the relationship between resistance and current in a circuit?

## How do you find the resistance of a resistor in a series circuit?

In a series circuit you will need to calculate the total resistance of the circuit in order to figure out the amperage. This is done by adding up the individual values of each component in series….To calculate the total resistance we use the formula:

- RT = R1 + R2 + R3.
- 2 + 2 + 3 = 7 Ohms.
- R total is 7 Ohms.

### What is series connection resistance?

In a series circuit, the equivalent resistance is the algebraic sum of the resistances. The current through the circuit can be found from Ohm’s law and is equal to the voltage divided by the equivalent resistance. The potential drop across each resistor can be found using Ohm’s law.

#### What voltage is necessary to supply a 3.0 a current through a 10 ohms resistor?

Well, now that that’s been explained to death, onto the math! P = 144/10. The power dissipation in the resistor is 14.4 watts. The current through the resistor is 1.2 amps.

**How many volts are in a circuit with a battery that has a resistance of 10 Ohm and a current of 2 amps?**

2.0 A, 0.2 V.

**What happens to the current in a circuit if a 10 ohm resistor is removed and replaced by a 20 ohm resistor?**

12. What happens to the current in a circuit if a 10Ω resistor is removed and replaced by a 20Ω resistor? I = 10Ω → 20Ω For the same voltage, current decreases.

## What is the voltage across each resistor connected in series?

The voltage across each resistor connected in series follows different rules to that of the series current. We know from the above circuit that the total supply voltage across the resistors is equal to the sum of the potential differences across R 1 , R 2 and R 3 , VAB = VR1 + VR2 + VR3 = 9V.

### How do you calculate the total resistance of a resistor?

This series resistor calculator calculates the total resistance value for all the resistors connected in series. Just add the number of resistors in the first column, and then enter the values of each resistor with selecting the proper unit of resistor value in Ω, KΩ or MΩ.

#### What is the relationship between resistance and current in a circuit?

The same current flows through each part of a series circuit. The total resistance of a series circuit is equal to the sum of individual resistances. Voltage applied to a series circuit is equal to the sum of the individual voltage drops.

**How is the voltage applied to a series circuit calculated?**

Voltage applied to a series circuit is equal to the sum of the individual voltage drops. The voltage drop across a resistor in a series circuit is directly proportional to the size of the resistor.