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14. Electric Current and its Effects Science class 7 in English Medium ncert book solutions Additional Questions
14. Electric Current and its Effects Additional Questions – Complete NCERT Book Solutions for Class 7 Science (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 14. Electric Current and its Effects Additional Questions to help you master concepts and score higher.
14. Electric Current and its Effects Science class 7 in English Medium ncert book solutions Additional Questions
NCERT Solutions for Class 7 Science play an important role in helping students understand the concepts of the chapter 14. Electric Current and its Effects clearly. This chapter includes the topic Additional Questions, which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 7 studying Science can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 14. Electric Current and its Effects is explained in a structured way, making it easier for students to connect the theory with the topic Additional Questions. By studying these updated NCERT Solutions for Class 7 Science, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
14. Electric Current and its Effects
Additional Questions
Additional Question:
Ques: How are two or more than two cells connected?
Ans: For connecting two or more than two cells, positive terminal of one cell is connected to negative terminal of the other cell.
Ques: What is battery?
Ans: Positive terminal of one cell is connected to negative terminal of the next cell, such a connection of two or more than two cells is known as battery.
Ques: What do you understand by heating effect of the electric current?
Ans: The wire gets hot when an electric current passes through it. This is the heating effect of the electric current.
Ques: Name two devices that work on the basis of heating effect of the electric current.
Ans: Electric iron and heater.
Ques: What material is the element made of in electric heater?
Ans: Nicrome.
Ques: What is fuse ? Give two reasons for connecting it in electric circuits.
Ans: Safety device using in electric circuits is called as fuse.
(i) It prevents the costly instruments connecting in electric circuit during overloading and short circuit.
(ii) It prevents against possibility of fire and damages of circuits.
Ques: What is overloading?
Ans: It begins to flow excess electric current in a circuit due to connect many devices to the single socket. This is known as overloading.
Ques: What is cell?
Ans: The cell is a device in which produced electric current by chemical changes.
Ques: Write the order in which cells of torch is connected.
Ans: The cells of torch is connected in series.
Ques: Name any two insulators.
Ans: rubber and plastic.
See other sub-topics of this chapter:
1. Chapter Review 2. NCERT Exercise 3. Additional Questions 4. Additional Questions