Electricity is the flow of electric charge. It is a form of energy that results from the existence of charged particles, such as electrons or protons.

Electric current is the flow of electric charge. It is measured in amperes (A) and is the rate of flow of electric charge past a point in an electric circuit.

An electric circuit is a closed loop through which an electric current can flow. It consists of electrical components such as resistors, capacitors, inductors, and a power source, connected by conductive wires.

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Mathematically, it is expressed as: V = I * R, where V is the voltage, I is the current, and R is the resistance.

Electrical power is the rate at which electric energy is transferred by an electric circuit. It is measured in watts (W) and is calculated using the formula: P = V * I, where P is power, V is voltage, and I is current.

- Define electricity and explain its significance in our daily lives.
- Discuss the factors that affect electric current in a circuit.
- Explain the concept of resistance and its role in electrical circuits.
- Derive and explain Ohm's law with suitable examples.
- Calculate the electrical power consumed by various household appliances.

Worksheet/Answer key

Electricity and Electrical Energy - Set I Worksheet/Answer key

Electricity and Electrical Energy - Set I Worksheet/Answer key

Electricity and Electrical Energy - Set I Worksheet/Answer keyElectricity and Electrical Energy - Set I

PHYSICAL SCIENCE (NGSS)

Energy

Students who demonstrate understanding can:

Develop and use models to illustrate that energy at the macroscopic scale can be accounted for as either motions of particles or energy stored in fields.