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Electric Field
An electric field is a region in which a charged object experiences an electric force.
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Electric Field
Recommended for Class 10
Electric Field
An electric field is a region in which a charged object experiences an electric force.
Electric field lines help us represent the field.
Direction
The direction of the electric field at a point is the direction of force on a small positive test charge.
Field lines:
leave positive charges; enter negative charges.
Properties
Electric field lines:
never cross; are closer together where the field is stronger; * show field direction by arrows.
Uniform Field
A uniform electric field can be represented by straight, parallel, equally spaced field lines.
A good approximate example exists between large oppositely charged parallel plates away from the edges.
Electric Field — Advanced
Common Mistakes
Common Mistakes
- Mistake
Field direction is defined using a positive test charge.
- Mistake
Lines are representations, not physical strings.
- Mistake
Field lines do not cross.
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Practice
PQ
Q1. Define electric field.
PQ
Q2. State field direction rule.
PQ
Q3. State two properties of electric field lines.
PQ
Q4. Describe uniform field.
PQ
Q5. Describe field pattern for positive vs negative charges.
Exam Practice
EQ
Q1. Define electric field.
EQ
Q2. State field direction rule.
EQ
Q3. State two properties of electric field lines.
EQ
Q4. Describe uniform field.
EQ
Q5. Describe field pattern for positive vs negative charges.
School-standard facts for Matric and Intermediate. Original explanations — not copied from textbooks.