Question

Formulas of chapter electricity​

Answer 1

Answer:

Explanation:

Quantity Formulas Unit

Current I  I = Q / t

Q = Charge

t = time taken

Amperes (A)

Voltage V V = E / Q

or

V = W / Q

E = Energy, W = Work done

Volts (V)

Resistance R  R = ρl / A

ρ = Resistivity,

l = length,

A = Area

or,

R = V / I

Ohm (Ω)

Power P  P = VI  Watts (W)

Conductivity σ  sigma = 1 / ρ  Siemens per meter (S/m)

Answer 2

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