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Extra Question Chapter 2:Acid Ans Base

Important Question Chapter 3:Metal and Non Metal

Chapter 4:Carbon And Its Compoundl

Chapter 5:Periodic Classification of elememt

Chapter 6:Life Processes

Chapter 7:Control and coordination

Chapter 8:How Do Organisms Reproduce?

Chapter 9:Hearedity And Evolution

Chapter 10:Light Reflection and Refraction

Chapter 11:The Human Eye and Colorful World

Chapter 12:Electricity

Chapter 13:Magnetic effect of electric current

Chapter 14:Sources of energy

Chapter 15:Our Environment

Important Questions of Electricity chapter 12 Class 10 with solutions -pathanto

Question 1

What is electric current?

Answer

Electric current is the flow of electric charge. In simpler terms, it's the movement of electrons through a conductor like a wire

Question 2

Explain the difference between AC and DC currents.

Answer

AC (Alternating Current) changes its direction periodically, while DC (Direct Current) flows in one direction consistently.

Question 3

Define electric circuit.

Answer

An electric circuit is a closed path that allows electric current to flow. It typically consists of a power source, conductors, and a load.

Question 4

What is electric potential?

Answer

Electric potential is the electric potential energy per unit charge at a point in an electric field. It's measured in volts.

Question 5

Explain the concept of potential difference.

Answer

Potential difference, or voltage, is the difference in electric potential between two points in a circuit. It's the driving force that makes electric charges move.

Question 6

How is a switch represented in a circuit diagram?

Answer

A switch is represented by a break in the circuit line with a gap, which can be closed or opened to control the flow of current.

Question 7

What does a circle in a circuit diagram represent?

Answer

A circle represents a light bulb or any other electrical load in a circuit diagram.

Question 8

State Ohm's Law.

Answer

Ohm's Law states that the current passing through a conductor between two points is directly proportional to the voltage across the two points, provided the temperature remains constant.

Question 9

If the voltage across a resistor is 12 volts and the current is 3 amperes, what is the resistance?

Answer

Using Ohm's Law (R = V/I), the resistance is 4 ohms.

Question 10

List the factors on which the resistance of a conductor depends.

Answer

The resistance of a conductor depends on its length, cross-sectional area, temperature, and the material it's made of.

Question 11

How does an increase in temperature affect the resistance of a conductor?

Answer

Generally, an increase in temperature increases the resistance of a conductor.

Question 12

Explain how resistances add up in a series circuit.

Answer

In a series circuit, resistances add up. The total resistance (R_total) is the sum of individual resistances.

Question 13

Describe how resistances combine in a parallel circuit.

Answer

In a parallel circuit, the reciprocal of the total resistance is equal to the sum of the reciprocals of individual resistances.

Question 14

What is the heating effect of electric current?

Answer

When electric current passes through a conductor, it produces heat due to the collisions between electrons and atoms in the conductor.

Question 15

How is the heating effect of electric current useful in appliances?

Answer

The heating effect is used in appliances like electric heaters and stoves to generate heat for various purposes.

Question 16

Define electric power.

Answer

Electric power is the rate at which electric energy is transferred or converted, measured in watts (W). .

Question 17

How is electric power related to voltage and current?

Answer

Electric power (P) is the product of voltage (V) and current (I), expressed by the formula P = VI. .

Question 18

Why is it important to use fuses in electrical circuits?

Answer

Fuses protect electrical circuits by melting and breaking the circuit when the current exceeds a safe limit, preventing damage to devices and fires. .

Question 19

Explain the concept of electrical grounding.

Answer

Electrical grounding provides a path for electric current to flow safely into the ground, preventing electric shocks and ensuring safety. .

Question 20

How does the size of a wire affect its resistance?

Answer

Generally, a thinner wire has higher resistance than a thicker wire. This is because a thicker wire allows for more electrons to flow, reducing resistance. .

Welcome to our comprehensive collection of Important Questions of Electricity for Class 10 and a set of Extra Questions of Electricity for Class 10! This page is your go-to resource for mastering the fundamental concepts of electricity that are essential for Class 10 students. Explore a carefully curated list of the most critical questions covering topics such as Electric Current and Circuit, Electric Potential and Potential Difference, Circuit Diagram, Ohm’s Law, Factors on Which the Resistance of a Conductor Depends, Resistance of a System of Resistors, Heating Effect of Electric Current, and Electric Power. Each question comes with detailed, human-friendly answers crafted to ensure a thorough understanding. Whether you are preparing for exams, revising key concepts, or seeking extra challenges, our collection of questions will cater to your needs. These questions are designed to enhance your knowledge and provide a solid foundation in electrical principles. Unlock the secrets of Ohm's Law, demystify circuit diagrams, and grasp the heating effects of electric current. Additionally, our set of extra questions goes beyond the basics, offering you the opportunity to delve deeper into the fascinating world of electricity. Empower your learning journey with our user-friendly, human-toned explanations. Perfect for students, teachers, and anyone eager to explore the wonders of electricity at the Class 10 level. Don't miss out on this valuable resource. Dive into the questions, deepen your understanding, and excel in your Class 10 electricity studies!