14. Electric Current and its Effects Class 7 Science [LATEST] Solutions Chapter Review in English - CBSE Study
NCERT Solutions for Class 7 Science are carefully prepared according to the latest CBSE syllabus and NCERT textbooks to help students understand every concept clearly. These solutions cover all important 14. Electric Current and its Effects with detailed explanations and step-by-step answers for better exam preparation. Each Chapter Review is explained in simple language so that students can easily grasp the fundamentals and improve their academic performance. The study material is designed to support daily homework, revision practice, and final exam preparation for Class 7 students. With accurate answers, concept clarity, and structured content, these NCERT solutions help learners build confidence and score higher marks in their examinations. Whether you are revising a specific topic or preparing an entire chapter, this resource provides reliable and syllabus-based guidance for complete success in Science.
Class 7 English Medium Science All Chapters:
14. Electric Current and its Effects
1. Chapter Review
Chapter Review:
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The cell is a device in which produced electric current by chemical changes.
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A combination of two or more cells is called a battery.
- The wire gets hot when an electric current passes through it. This is the heating effect of the electric current.
- Safety device using in electric circuits is called as fuse.
- In the bulb there is a thin wire, called the filament .
- It begins to flow excess electric current in a circuit due to connect many devices to the single socket. This is known as overloading.
- The cells of torch is connected in series.
- Nicrome is the element made of electric heater.
- Full Form of CFL is Compact fluorescent lamp.
- Full Form of MCB is Miniature circuit breaker.
- When the electric current is switched off, the coil generally loses its
magnetism. Such coils are called electromagnets. - The amount of heat produced in a wire depends on its material, length
and thickness.
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