Basics of Electricity and Electronics #1 | Voltage, Current and Power | Electricity 101

This video by Practical Ninjas introduces the basic concepts of electricity, including charge, voltage, current, power, and energy. It explains that electricity is the movement of electrons and describes voltage as the potential difference between two points. The video uses a water tank analogy to help understand voltage and current, defining current as the rate of charge flow. Power is explained as the rate of work done in an electric circuit, calculated as the product of voltage and current. The video concludes with a preview of future topics on the relationship between voltage and current.

What is the primary component responsible for electricity in an atom?

• Electrons

• Nuclei

• Protons

• Neutrons

How is voltage defined in terms of electrical energy and charge?

• Voltage is the sum of electrical energy and charge.

• Voltage is the difference between electrical energy and charge.

• Voltage is the product of electrical energy and charge.

• Voltage is the ratio of electrical energy to charge.

In the water tank analogy, what does the water pressure difference represent?

• Resistance

• Power

• Voltage

• Current

What is the unit of current?

• Volts

• Watts

• Amperes

• Joules

How is power mathematically expressed in an electric circuit?

• Power is the ratio of voltage to current.

• Power is the sum of voltage and current.

• Power is the difference between voltage and current.

• Power is the product of voltage and current.