Class 7 Exam > Class 7 Notes > Science Class 7 > Worksheet: Electric Current and Its effects
Electric Current and Its effects Class 7 Worksheet Science Chapter 10
Q.1. True/False
(i) To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell.
(ii) When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks.
(iii) An electromagnet does not attract a piece of iron.
(iv) An electric bell has an electromagnet.
Q.2. Fill in the blanks.
(i) Longer line in the symbol for a cell represents its ____ terminal.
(ii) The combination of two or more cells is called a ____.
(iii) When current is switched ‘on’ in a room heater, it ____.
(iv) The safety device based on the heating effect of electric current is called a ____.
Q.3. What is electric current?
Q.4. Who discovered magnetic effect of current?
Q.5. Which wire used in electric heater and why?
Q.6. Is it possible for a wire to melt and break? Why?
Q.7. Who invented electric bulb?
Q.8. Write some uses of battery.
Q.9. What is filament?
Q.10. What is the heating effect of the electric current?
Q.11. What are the uses of heating effect of electric current?
Q.12. Name any two effects of electric current.
Q.13. What is an electric circuit?
Q.14. Explain the symbol of electric cell.
Q.15. Why are fuse wires not used in circuit containing electric cell?
Q.16. Why a fused bulb does not glow?
Q.17. Why should we look for ISI mark on electrical appliances?
Q.18. We could not see element in electrical appliances. Give reason.
Q.19. Sometimes the cells are placed side by side. Then how are the terminals of the cells connected?
Q.20. On what factors does the heat produced in a wire depend?
You can find Worksheets Solutions here: Worksheet Solutions: Electric Current and Its effects
The document Electric Current and Its effects Class 7 Worksheet Science Chapter 10 is a part of the Class 7 Course Science Class 7.
All you need of Class 7 at this link: Class 7
|
111 videos|246 docs|28 tests
|
FAQs on Electric Current and Its effects Class 7 Worksheet Science Chapter 10
| 1. What is electric current and how is it measured? |  |
Ans. Electric current is the flow of electric charge in a circuit. It is measured in units called amperes (A), using a device called an ammeter. An ammeter is connected in series with the circuit and measures the amount of current passing through it.
| 2. What are the effects of electric current on the human body? | |
Ans. Electric current can have various effects on the human body, depending on the magnitude and duration of the current. It can cause muscle contractions, burns, injuries to the nervous system, and even cardiac arrest. The severity of the effects depends on factors such as the pathway of the current through the body and the resistance of the body.
| 3. How does an electric circuit work? | |
Ans. An electric circuit is a closed loop through which electric current flows. It consists of a power source (such as a battery or a generator), conductive wires, and various components (such as resistors, capacitors, and switches). When the circuit is closed, the power source provides the voltage that drives the current through the wires and components, allowing the flow of electric charge.
| 4. What is the difference between direct current (DC) and alternating current (AC)? | |
Ans. Direct current (DC) is the type of current where the flow of electric charge is unidirectional, meaning it flows in only one direction. It is commonly produced by batteries. On the other hand, alternating current (AC) is the type of current where the flow of electric charge periodically changes direction. It is the type of current supplied by most power grids. AC is advantageous for long-distance transmission as it can easily be transformed to different voltages.
| 5. How does electric current produce different effects in different devices? | |
Ans. Electric current produces different effects in different devices based on their design and components. For example, in a resistor, the current causes the heating of the resistor due to the resistance, while in an electric motor, the current produces a magnetic field that interacts with other magnetic fields to generate motion. The specific effects depend on the principles and properties of the components used in the device.
About this Document
|
4.66/5 Rating |
|
Dec 24, 2024 Last updated |
Document Description: Worksheet: Electric Current and Its effects for Class 7 2024 is part of Science Class 7 preparation.
The notes and questions for Worksheet: Electric Current and Its effects have been prepared according to the Class 7 exam syllabus. Information about Worksheet: Electric Current and Its effects covers topics
like and Worksheet: Electric Current and Its effects Example, for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Worksheet: Electric Current and Its effects.
Introduction of Worksheet: Electric Current and Its effects in English is available as part of our Science Class 7
for Class 7 & Worksheet: Electric Current and Its effects in Hindi for Science Class 7 course.
Download more important topics related with notes, lectures and mock test series for Class 7
Exam by signing up for free. Class 7: Electric Current and Its effects Class 7 Worksheet Science Chapter 10
Description
Full syllabus notes, lecture & questions for Electric Current and Its effects Class 7 Worksheet Science Chapter 10 - Class 7 | Plus excerises question with solution to help you revise complete syllabus for Science Class 7 | Best notes, free PDF download
Information about Worksheet: Electric Current and Its effects
In this doc you can find the meaning of Worksheet: Electric Current and Its effects defined & explained in the simplest way possible. Besides explaining types of
Worksheet: Electric Current and Its effects theory, EduRev gives you an ample number of questions to practice Worksheet: Electric Current and Its effects tests, examples and also practice Class 7
tests
|
Explore Courses for Class 7 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
shortcuts and tricks
,past year papers
,Important questions
,Sample Paper
,ppt
,Extra Questions
,practice quizzes
,mock tests for examination
,Summary
,Free
,Objective type Questions
,Viva Questions
,study material
,Previous Year Questions with Solutions
,video lectures
,Semester Notes
,Electric Current and Its effects Class 7 Worksheet Science Chapter 10
,MCQs
,Exam
,Electric Current and Its effects Class 7 Worksheet Science Chapter 10
,Electric Current and Its effects Class 7 Worksheet Science Chapter 10
;
Additional Information about Worksheet: Electric Current and Its effects for Class 7 Preparation
Worksheet: Electric Current and Its effects Free PDF Download
The Worksheet: Electric Current and Its effects is an invaluable resource that delves deep into the core of the Class 7 exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the Worksheet: Electric Current and Its effects now and kickstart your journey towards success in the Class 7 exam.
Importance of Worksheet: Electric Current and Its effects
The importance of Worksheet: Electric Current and Its effects cannot be overstated, especially for Class 7 aspirants.
This document holds the key to success in the Class 7 exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
Worksheet: Electric Current and Its effects Notes
Worksheet: Electric Current and Its effects Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to Worksheet: Electric Current and Its effects.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, Worksheet: Electric Current and Its effects Notes on EduRev are your ultimate resource for success.
Worksheet: Electric Current and Its effects Class 7 Questions
The "Worksheet: Electric Current and Its effects Class 7 Questions" guide is a valuable resource for all aspiring students preparing for the
Class 7 exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study Worksheet: Electric Current and Its effects on the App
Students of Class 7 can study Worksheet: Electric Current and Its effects alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Worksheet: Electric Current and Its effects,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Worksheet: Electric Current and Its effects is prepared as per the latest Class 7 syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup