The voltage of the domestic electric supply is represented by the equation \(V = 311 \sin 314.2t\). Determine the frequency of the a.c. supply \([\pi = 3.14...

Assessment: JAMB UTME - Physics - 1997 Subject: Physics

Question 1 Report

The voltage of the domestic electric supply is represented by the equation \(V = 311 \sin 314.2t\). Determine the frequency of the a.c. supply \([\pi = 3.142]\)

Answer Details
V = 311 sin314.2t compare with,

V = V sin2 π Ft

2 μ F = 314.2

F =  314.2 2 ×   3.142

F = 50Hz

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