Current in a Network of Resistors

In summary, the current in a network of resistors refers to the flow of electric charge through the network, and is measured in amperes (A). It can be calculated using Ohm's Law, which states that current (I) is equal to the voltage (V) divided by the total resistance (R) in the network. Current and resistance have an inverse relationship, and the arrangement of resistors in a network can affect the overall current. Real-world applications of current in a network of resistors include powering household appliances and designing electronic devices.
  • #1
cbb12
1
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Homework Statement


http://img97.imageshack.us/i/physicsquestion.png/

Homework Equations


R= V/I
For Series: Req= R1+R2
For Parallel: 1/Req= 1/R1+1/R2

The Attempt at a Solution


I have two attempts remaining for each question
 
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  • #2
cbb12 said:

Homework Statement


http://img97.imageshack.us/i/physicsquestion.png/

Homework Equations


R= V/I
For Series: Req= R1+R2
For Parallel: 1/Req= 1/R1+1/R2


The Attempt at a Solution


I have two attempts remaining for each question

Show us your calculations so that we can help you.
 
  • #3
What's the voltage drop across R2, the 8Ω resistor?
 

FAQ: Current in a Network of Resistors

What is the definition of current in a network of resistors?

The current in a network of resistors refers to the flow of electric charge through the network, measured in amperes (A). This current is caused by the movement of electrons through the resistors in the network.

How is current calculated in a network of resistors?

Current in a network of resistors can be calculated using Ohm's Law, which states that current (I) is equal to the voltage (V) divided by the total resistance (R) in the network (I = V/R). This means that the higher the voltage or the lower the resistance, the greater the current will be.

3. What is the relationship between current and resistance in a network of resistors?

Current and resistance have an inverse relationship in a network of resistors. This means that as resistance increases, current decreases, and vice versa. This relationship is described by Ohm's Law: I = V/R.

4. How does the arrangement of resistors affect the current in a network?

The arrangement of resistors in a network can affect the overall current in several ways. In a series circuit, where resistors are connected end-to-end, the current is the same through each resistor. In a parallel circuit, where resistors are connected side-by-side, the current is divided among the resistors based on their individual resistance values. The overall current in a network will also be affected by the total resistance and voltage in the circuit.

5. What are some real-world applications of current in a network of resistors?

Current in a network of resistors is a fundamental concept in electronics and has many real-world applications. It is used in everyday devices such as light bulbs, to power household appliances, and in more complex systems such as circuit boards in computers and other electronic devices. Understanding current in a network of resistors is crucial for designing and troubleshooting any electrical system.

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