Electric Current - Current Electricity in Physics - Diploma Physics 1

TL;DR

Electric current is the flow of charges, with electrons moving towards the positive terminal of a battery, and it can be defined as the rate of flow of electric charge through a conducting wire.

Transcript

click the Bell icon to get latest videos from akira hello friends today we will see concept of electric current we know electric current is a flow of charges it can be positive it can be negative but in metal we have a flow of negative charges that is electrons so let us start with this video now electric current we will see what is the definition ... Read More

Key Insights

• 💐 Electric current is the flow of charges, and in metals, the flow is due to the movement of electrons.
• ❓ The conventional direction of current is opposite to the actual movement of electrons in a circuit.
• ⏳ Electric current can be defined as the rate of flow of electric charge through a conducting wire or as the flow of charges per unit time.

Questions & Answers

Q: How is electric current defined?

Electric current is defined as the rate of flow of electric charge through the cross-section of a conducting wire in an electric circuit.

Q: What direction does the conventional current flow?

The conventional direction of current is considered as the direction of positive charge, even though electrons are the actual charge carriers that move towards positive charge.

Q: How can electric current be defined in another way?

Electric current can be defined as the flow of charges per unit time, represented by the equation I = Q/T.

Q: What is the unit and dimension of electric current?

The unit of electric current is amperes (A), and the dimension of electric current is given as [electric charge] / [time].

Summary & Key Takeaways

• Electric current is the flow of charges, with electrons moving towards the positive terminal of a battery.

• The conventional direction of current is considered as the direction of positive charge, even though electrons are moving towards positive charge.

• Electric current can also be defined as the flow of charges per unit time.

• The unit of electric current is amperes (A).