Two Electric Currents Are Shown In The Table Below.${ \begin{tabular}{|l|l|l|} \hline Current & Volts & Amperes \ \hline X X X & 1.5 & 7.8 \ \hline Y Y Y & 9 & 0.5 \ \hline \end{tabular} }$Which Best Compares The Two Currents?A. Current

Comparing Two Electric Currents: Understanding the Relationship Between Volts and Amperes

When it comes to electric currents, understanding the relationship between volts and amperes is crucial. In this article, we will delve into the world of electric currents and explore how to compare two electric currents using the given data in the table below.

Understanding Electric Currents

Electric current is the flow of electric charge, typically measured in amperes (A). It is a fundamental concept in physics and is used to describe the flow of electric charge through a conductor. The two electric currents shown in the table below are denoted as $X$ and $Y$. We are given the values of volts and amperes for each current.

The Table

Current	Volts	Amperes
$X$	1.5	7.8
$Y$	9	0.5

Comparing the Two Currents

To compare the two electric currents, we need to understand the relationship between volts and amperes. The relationship between volts and amperes is given by Ohm's law, which states that the current through a conductor is directly proportional to the voltage applied across it, provided the resistance of the conductor remains constant.

Ohm's Law

Ohm's law is a fundamental principle in physics that describes the relationship between voltage, current, and resistance. It is given by the equation:

I = V/R

where I is the current, V is the voltage, and R is the resistance.

Applying Ohm's Law

Using Ohm's law, we can calculate the resistance of each current. We are given the values of volts and amperes for each current, so we can rearrange the equation to solve for resistance.

For current $X$, we have:

R = V/I = 1.5/7.8 = 0.1923 ohms

For current $Y$, we have:

R = V/I = 9/0.5 = 18 ohms

Comparing the Resistances

Now that we have calculated the resistances of each current, we can compare them. We can see that the resistance of current $X$ is much lower than the resistance of current $Y$.

Conclusion

In conclusion, we have compared two electric currents using the given data in the table. We have applied Ohm's law to calculate the resistances of each current and have compared them. We have found that the resistance of current $X$ is much lower than the resistance of current $Y$.

Discussion

The comparison of the two electric currents has provided us with valuable insights into the relationship between volts and amperes. We have seen that the resistance of a conductor plays a crucial role in determining the current that flows through it. This understanding is essential in designing and building electrical circuits.

Real-World Applications

The comparison of electric currents has numerous real-world applications. For example, in the design of electrical circuits, understanding the relationship between volts and amperes is crucial. It helps engineers to design circuits that can handle high currents and voltages.

Conclusion

In conclusion, we have compared two electric currents using the given data in the table. We have applied Ohm's law to calculate the resistances of each current and have compared them. We have found that the resistance of current $X$ is much lower than the resistance of current $Y$. This understanding is essential in designing and building electrical circuits.

References

• Ohm, G. (1827). Die galvanische Kette, mathematisch bearbeitet. Leopold Voss.
• Halliday, D., Resnick, R., & Walker, J. (2013). Fundamentals of physics. John Wiley & Sons.

Further Reading

• Electric current: A comprehensive guide
• Ohm's law: A fundamental principle in physics
• Electrical circuits: Design and analysis
  Frequently Asked Questions: Electric Currents and Ohm's Law

In our previous article, we compared two electric currents using the given data in the table. We applied Ohm's law to calculate the resistances of each current and compared them. In this article, we will answer some frequently asked questions related to electric currents and Ohm's law.

Q: What is electric current?

A: Electric current is the flow of electric charge, typically measured in amperes (A). It is a fundamental concept in physics and is used to describe the flow of electric charge through a conductor.

Q: What is Ohm's law?

A: Ohm's law is a fundamental principle in physics that describes the relationship between voltage, current, and resistance. It is given by the equation:

I = V/R

where I is the current, V is the voltage, and R is the resistance.

Q: What is the relationship between voltage and current?

A: According to Ohm's law, the current through a conductor is directly proportional to the voltage applied across it, provided the resistance of the conductor remains constant.

Q: What is the relationship between resistance and current?

A: According to Ohm's law, the current through a conductor is inversely proportional to the resistance of the conductor, provided the voltage remains constant.

Q: How do you calculate the resistance of a conductor?

A: To calculate the resistance of a conductor, you can use Ohm's law. Rearrange the equation to solve for resistance:

R = V/I

Q: What is the unit of resistance?

A: The unit of resistance is ohms (Ω).

Q: What is the difference between a conductor and a resistor?

A: A conductor is a material that allows electric charge to flow through it, such as copper wire. A resistor is a device that opposes the flow of electric charge, such as a light bulb.

Q: What is the purpose of a resistor in an electrical circuit?

A: The purpose of a resistor in an electrical circuit is to control the flow of electric charge and to provide a specific amount of resistance to the circuit.

Q: How do you calculate the power consumed by an electrical circuit?

A: To calculate the power consumed by an electrical circuit, you can use the equation:

P = V x I

where P is the power, V is the voltage, and I is the current.

Q: What is the unit of power?

A: The unit of power is watts (W).

Conclusion

In conclusion, we have answered some frequently asked questions related to electric currents and Ohm's law. We hope that this article has provided you with a better understanding of these fundamental concepts in physics.

References

• Ohm, G. (1827). Die galvanische Kette, mathematisch bearbeitet. Leopold Voss.
• Halliday, D., Resnick, R., & Walker, J. (2013). Fundamentals of physics. John Wiley & Sons.

Further Reading

• Electric current: A comprehensive guide
• Ohm's law: A fundamental principle in physics
• Electrical circuits: Design and analysis