Electricity Definition, Types, Examples & Uses

Electricity

Subject: General Science

Book: NCERT Science Class 10

Electricity is the flow of electric charge.
- **Key Terms**:
- Current (I) = Charge (Q) / Time (t).
- Voltage (V) = Work done per unit charge.
- Resistance (R) = Opposition to current flow.
- **Ohm’s Law**: V = IR (Voltage is directly proportional to current).
- **Series and Parallel Circuits**:
- Series: One path for current.
- Parallel: Multiple paths for current.
- **Applications**:
- Home electrical circuits.
- Use of fuses to prevent overloading.

**Possible Exam Questions:**
1. Define electric current and explain Ohm’s Law.
2. Differentiate between series and parallel circuits.
3. Why are fuses used in electrical circuits?
4. Explain the concept of electrical resistance.
5. Solve numerical problems on Ohm’s Law.