⚡ Electric Field Lines Surrounding Point Charges

Electric field lines help us visualize invisible electric forces around charged particles. This diagram clearly shows how fields behave around positive (+) and negative (−) point charges.

📘 What Are Electric Field Lines?

Electric field lines are imaginary lines that represent:

• Direction of the electric force

• Strength of the electric field

• Interaction between charges

👉 A positive test charge moves along these lines.

➕ Electric Field Around a Positive Charge

• Field lines radiate outward

• Indicates repulsion

• Strength is highest near the charge

👉 Field direction: Away from the charge

➖ Electric Field Around a Negative Charge

• Field lines point inward

• Indicates attraction

• Strongest near the center

👉 Field direction: Toward the charge

📊 Comparison Table: Positive vs Negative Charges

Feature	➕ Positive Charge	➖ Negative Charge
Field Line Direction	Outward from the charge	Inward toward the charge
Interaction with Test Charge	Repels positive charges	Attracts positive charges
Field Line Start/End	Starts from the charge	Ends at the charge
Electric Field Strength	Strong near charge, weak far away	Strong near charge, weak far away
Visual Representation	Arrows pointing outward	Arrows pointing inward

📏 Key Rules of Electric Field Lines

• Field lines never cross ❌

• More lines = stronger field 📈

• Lines go from positive → negative ➡️

• Always show the path of a positive test charge

🌍 Real-World Applications

Electric field concepts are used in:

• ⚡ Capacitors and circuits

• 🖨️ Printers and photocopiers

• 🧲 Particle accelerators

• 🎨 Electrostatic painting

🧠 Quick Summary

• ➕ Positive charges → field lines go outward

• ➖ Negative charges → field lines go inward

• Field lines show direction + strength of electric forces

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