Subject: General Science
Book: NCERT Science Class 7
Electricity flows through conductors and powers electrical appliances.
- **Effects of Electric Current**:
- **Heating Effect**: Used in electric irons, geysers.
- **Magnetic Effect**: Creates a magnetic field (Example: Electromagnets).
- **Circuit Components**:
- A complete circuit is needed for current to flow.
- Switches control the flow of electricity.
**Possible Exam Questions:**
1. What are the heating and magnetic effects of electric current?
2. How does an electric circuit work?
3. What is the role of a switch in an electric circuit?
4. Explain how electromagnets are used in daily life.
5. How do fuses protect electrical appliances?
Which part of the human eye is responsible for focusing light on the retina?
View QuestionWhich gas is commonly used in balloons to make them float?
View QuestionWhich gas is known as "laughing gas"?
View QuestionWhich planet has the strongest gravitational force?
View QuestionWhat type of electromagnetic radiation has the longest wavelength?
View QuestionWhat is the unit of electric current?
View QuestionWhich gas is used in the process of welding?
View QuestionWhich organ stores and releases glucose in the human body?
View QuestionWhat is the pH of pure water at 25°C?
View QuestionWhat is the primary component of the Sun?
View Question