Electrical Charges and Fields — Important Questions
Telangana Open School (TOSS) · Class 12 · Physics
52 important questions from Electrical Charges and Fields for Telangana Open School (TOSS) Class 12 Physics, with answers.
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Important Questions from Electrical Charges and Fields
What is the value of Coulomb's constant k in SI units?
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9 × 10⁹ N m² C⁻²
Coulomb's constant k is 9 × 10⁹ N m² C⁻² in SI units.
What is the direction of electric field due to a positive point charge?
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Away from the charge
The electric field due to a positive charge points radially outward, away from the charge.
What is the net charge on a system if it is isolated?
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Remains constant
According to the law of conservation of charge, the total charge of an isolated system remains constant.
Which of the following is a vector quantity?
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Electric field
Electric field has both magnitude and direction, making it a vector quantity.
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