Give me Notes of " Electricity" CBSE Class 10
Answers
Explanation:
★ ELECTRICITY★
☆ Electric Circuit = A Continuous and closed path of an Electric Current is Called an Electric Circuit.
When the Terminals of a Battery are Connected across the ends of a Conductor, Charges flow through it and Constitutes Electric Current.
☆ Electric Current = It can be define as the amount of Charges flowing through a Conductor per Unit Time.
In Other Words,
The Flowing Electric Charge in a Conductor is known as Electric Current.
☆ The S.I. unit of Electric Charge is Coulomb ( C).
☆ There are two types of Charges. They are:-
● Positive Charge = The Charge carried in a proton is positive and is equal to 1.6 × 10^(-19).
● Negative Charge = The Charge Carried by an Electron is Negative and is equal to -1.6 × 10^(-19).
☆ Potential Difference = The Electric Potential Difference between two points is define as the work done to move a unit charge from one point to another.
☆ Electric Potential = It can be define as the work done in taking a unit Charge from any reference point to that Particular point.
☆ Ohm's Law = The Ohm's law states that, At the Constant Temperature, the potential Difference across the end of a given Conductor is directly proportional to the Current flowingthrough it.
☆ Resistance = The Resistance of a Conductor is defined as the Ratio of Potential Difference applied to the Conductor to the Current Flowing through it.
NOTE :- The Higher is the Resistance, the lower is the Current. If the Resistance is Doubled, the Current will be halved.
☆ Resistivity = The Resistivity of a Material is defined as the Resistance per unit length of the material of unit area of Cross Section.
☆☆ Combination of Resistor!!
=) A Conducting Wire of a Particular Resistance is called Resistor.
☆ Series Combination = In this, the Resistors are Connected end to end.
=) Equivalent Resistance = R1 + R2 + ........
☆ Parallel Combination = In this, One end of each Resistor is connected to one point and the other end is Connected to another point.
=) Equivalent Resistance = 1/R1 + 1/R2 + .......
☆ Heating Effect of Electric Current = When Current flows through the Resistor, the Heat is produced. This is known as Heating Effect of Electric Current.
☆ Electric Power = It is defined as the Rate of doing Electric work of Electric Energy.
Answer:
† Electric Circuit = A Continuous and closed path of an Electric Current is Called an Electric Circuit.
When the Terminals of a Battery are Connected across the ends of a Conductor, Charges flow through it and Constitutes Electric Current.
† Electric Current = It can be define as the amount of Charges flowing through a Conductor per Unit Time.
In Other Words,
† The Flowing Electric Charge in a Conductor is known as Electric Current.
† The S.I. unit of Electric Charge is Coulomb ( C).