🌈 Rainbow Mind Map of Electric Current

Understand electric current through a colourful mind map, animated circuit, formulas, units, devices, video lesson, quiz and HOTS questions.

Electric Current Ampere Ohm’s Law Circuit Physics

🌈 Electric Current Rainbow Mind Map

🔴 Definition

• Electric current is the rate of flow of electric charge.
• It flows through a closed circuit.

🟠 Formula

• I = Q / t
• Current = Charge ÷ Time

🟡 SI Unit

• Ampere (A)
• 1 A = 1 C / 1 s

🟢 Direction

• Conventional current flows from positive to negative terminal.
• Electron flow is from negative to positive terminal.

🔵 Measuring Device

• Ammeter measures electric current.
• It is connected in series in a circuit.

🟣 Types of Current

• Direct Current (DC)
• Alternating Current (AC)

⚫ Ohm’s Law

• V = IR
• Current depends on voltage and resistance.

🧠 Key Point

• Current flows only when the circuit is complete.
• More resistance reduces current.

🖼️ Image Section

▶ Watch: Rainbow Mind Map of Electric Current

Watch the video and then revise using the interactive circuit and quiz.

Embedded YouTube video included as requested.

⚡ Understanding Electric Current

🎯 Learning Objectives

• Understand electric current.
• Learn the formula I = Q/t.
• Know the SI unit ampere.
• Understand the role of ammeter and circuit.

📊 Learning Outcomes

• Defines electric current correctly.
• Uses current formula properly.
• Identifies ammeter and its connection.
• Distinguishes AC and DC current.

🧩 Competencies

• Conceptual Understanding
• Numerical Skills
• Scientific Reasoning
• Application Skills

I = Q / t

V = IR

I = current, Q = charge, t = time, V = voltage, R = resistance

🔋 Animated Closed Circuit

The moving red dot represents charge flow in a closed circuit.

🔋

💡

Current flows when a circuit is complete and a potential difference is provided by a cell or battery.

Electric Current

Electric current is the rate of flow of electric charge.

🧮 Electric Current Calculator

Find Current

Use: I = Q / t

Find Charge

Use: Q = I × t

Ohm’s Law Calculator

Use: I = V / R

✅ Electric Current Quiz

Select the correct answer and click submit to check your score.

1. Electric current is: Rate of flow of charge Flow of heat only Flow of sound

2. Formula of current is: I = Q/t I = t/Q I = Q × t

3. SI unit of current is: Ampere Volt Ohm

4. Current is measured by: Ammeter Voltmeter Thermometer

5. Ammeter is connected in: Series Parallel Open air

6. Ohm’s law is: V = IR V = I/R R = VI

7. Conventional current flows from: Positive to negative Negative to positive No direction

8. Current flows only when circuit is: Closed Open Broken

9. DC stands for: Direct Current Double Current Digital Charge

10. More resistance causes current to: Decrease Increase always Become zero always

🧠 HOTS Questions

Click each question to reveal the answer.

1. Why does current not flow in an open circuit?

Because the path is broken, so charge cannot flow continuously.

2. Why is an ammeter connected in series?

Because it must allow the same current of the circuit to pass through it for measurement.

3. Why does resistance reduce current?

Resistance opposes the flow of charge, so current decreases when resistance increases.

4. Why is a battery needed in a circuit?

A battery provides potential difference, which pushes charges through the circuit.

5. How is electric current useful in daily life?

It helps operate bulbs, fans, computers, phones, motors and many electrical appliances.