Total Resistance b/w A & B = 60 Ohms

Thread starter chawki
Start date Mar 15, 2011
Tags

Resistance Total resistance

In summary, total resistance is the overall resistance of a circuit and is calculated by adding up the individual resistances of all the components. The total resistance between points A and B is important as it determines the amount of current, voltage, and power in the circuit. It can be reduced by adding more resistors in parallel or using resistors with lower values. Factors such as the individual component resistances, arrangement, and wire material and length affect the total resistance. It is not possible for the total resistance between points A and B to be zero, as there will always be some resistance in the connecting wires.

Mar 15, 2011

chawki

Homework Statement

R=50 Ohms

Homework Equations

Calculate the total resistance between points A and B.

The Attempt at a Solution

1/Req = 1/2R + 1/3R
1/Req = (3R+2R)/6R²
Req = (6/5)*R = (6/5)*50 = 60 Ohms

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Mar 15, 2011

tiny-tim

Science Advisor

Homework Helper

chawki said:

1/Req = 1/2R + 1/3R
1/Req = (3R+2R)/6R²
Req = (6/5)*R = (6/5)*50 = 60 Ohms

yup!

What is total resistance and how is it calculated?

Total resistance is the overall resistance of a circuit, which is the opposition to the flow of electric current. It is calculated by adding up the individual resistances of all the components in a circuit.

Why is the total resistance between points A and B important?

The total resistance between points A and B is important because it determines the amount of current that will flow through the circuit. It also affects the voltage and power in the circuit.

How can the total resistance between points A and B be reduced?

The total resistance between points A and B can be reduced by adding more resistors in parallel, as this decreases the overall resistance of the circuit. Another way is by using resistors with lower values.

What factors affect the total resistance between points A and B?

The factors that affect the total resistance between points A and B include the resistances of the individual components, the arrangement of the components in the circuit, and the material and length of the wires used.

Can the total resistance between points A and B ever be zero?

No, the total resistance between points A and B can never be zero. This is because even if all the components in the circuit have zero resistance, there will still be some resistance in the wires connecting them.