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Formula Sheet

Current Electricity — Formula Sheet

J&K CET · Physics

Free Current Electricity formula sheet for J&K CET Physics 2026 — all important formulas, equations, and constants for quick reference.

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Formula Sheet — Current Electricity

Important formulas and equations from Current Electricity for J&K CET Physics.

Formulas — Current Electricity

Electric Current

I = Q/t
I = nAev_d

Ohm's Law and Resistance

V = IR
R = ρl/A
J = σE = E/ρ
v_d = eEτ/m

Electrical Power and Energy

P = VI = I²R = V²/R
W = Pt = VIt = I²Rt
P_loss = I²R_c = P²R_c/V²

Combination of Resistors

R_series = R₁ + R₂ + R₃ + ...
1/R_parallel = 1/R₁ + 1/R₂ + 1/R₃ + ...
R_parallel = R₁R₂/(R₁ + R₂)

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Frequently Asked Questions

What topics are covered in Current Electricity for J&K CET?
Current Electricity is an important chapter in J&K CET Physics. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Electric Current and Current Density, Ohm's Law and Resistance, Drift Velocity and Microscopic Origin, Temperature Dependence of Resistivity.
How important is Current Electricity for J&K CET?
Current Electricity is a frequently tested chapter in J&K CET Physics. Questions from this chapter appear regularly in previous year papers. There are 507 practice questions available for this chapter.
How to prepare Current Electricity for J&K CET?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.

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