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Formula Sheets / Physics

Chapter 33

Experimental Physics

Revise with flashcards Download this chapter (PDF) All Physics formulas (PDF)

Measuring instruments Experiments and error analysis

Measuring instruments

Vernier callipers
LC $= 1$ MSD $- 1$ VSD $;$ reading $=$ MSR $+ n \times$ LC $-$ zero error
Screw gauge
LC $= \frac{pitch}{circular scale divisions};$ reading $=$ MSR $+ n \times$ LC $-$ zero error

Experiments and error analysis

Pendulum g
$g = \frac{4 π ^{2} l}{T ^{2}},$ $\frac{Δ g}{g} = \frac{Δ l}{l} + 2 \frac{Δ T}{T}$
Young's modulus (Searle)
$Y = \frac{4 M g L}{π d ^{2} Δ l}$
Specific resistance
$ρ = \frac{π d ^{2} R}{4 L}$

Communication Systems