Electric Potential
ICSE · Class 12 · Physics
All formulas from Electric Potential in ICSE Class 12 Physics. Key equations, constants, and identities for board exam preparation.
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Formulas
1. Electric Potential and Potential Difference
V = W / q0
V_A - V_B = W / q0
1 volt = 1 joule/coulomb
Dimensions of electric potential = [M L^2 T^-3 A^-1]
2. Electron-volt and Energy
1 eV = 1.6 × 10^-19 J
W = q0 (V_A - V_B)
3. Potential Due to Point Charge, Group of Charges, and Potential Gradient
V = (1 / (4π ε0 K)) (q / r)
V = (1 / (4π ε0)) Σ(qi / ri)
E = -dV / dr
E = (V1 - V2) / d
1 N/C = 1 V/m
4. Potential Difference in Uniform Field
V_B - V_A = -E d
V_A - V_B = E d
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