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What generates electrical fields?
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Electric charges generate electrical fields.
What is the formula to calculate electric field strength for a point charge?
Electric Field Strength (E) = KQ/R^2, where E is the field strength, K is Coulomb's constant, Q is the charge of the point charge, and R is the distance from the charge.
Explain the behavior of electric field lines for positive and negative point charges.
For positive charges, field lines radially outward; for negative charges, field lines radially inward.
Calculate the force on an electron placed between two charged plates 30 cm apart with a potential difference of 20 volts.
Electric Field Strength (E) = 66.7 N/C, Force (F) = 1.0672 x 10^-17 N
Describe the characteristics of uniform electric fields.
Uniform fields have even, parallel field lines, typically created by oppositely charged plates resulting in a dipole field.
Describe a point charge.
A point charge is a charge located at a single point, such as a proton or an electron.
State Coulomb's Law for forces between two point charges.
Coulomb's Law: F = KQ1Q2/R^2, where F is the force, Q1 and Q2 are the charges of two interacting point charges, and R is the distance between their centers.
What is the equation for electric field strength in a uniform field?
Electric Field Strength (E) = V/D, where V is the voltage and D is the distance between the plates.
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