Answer:
Explanation:
By Logical Identities formula, the simplifications and prove is as shown in the attached file.
Question 2: write a program for smart garage system using:
1 answer:
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Answer:
(c) Generator, 95.5 %
Explanation:
given data
voltage va = 120V
current Ia = - 5.5 A
Tmech = 5.5Nm
ns = 1200 RPM
solution
first we get here electric input power that is express as
electric input power = va × Ia ......1
put here value and we get
electric input power = 120 × -5-5
electric input power -660 W
here negative mean it generate power
and here
Pin ( mech) will be
Pin ( mech) = Tl × ω .........2
Pin ( mech) = 5.5 ×
Pin ( mech) = 5.5 ×
Pin ( mech) = 691.150 W
and
efficiency will be here as
efficiency =
efficiency = 95.5 %
so correct option is (c) Generator, 95.5 %
Answer:
The inductance of the inductor is 0.051H
Explanation:
From Ohm's law;
V = IR .................. 1
The inductor has its internal resistance referred to as the inductive reactance, X, which is the resistance to the flow of current through the inductor.
From equation 1;
V = IX
X =
................ 2
Given that; V = 240V, f = 50Hz, =
, I = 15A, so that;
From equation 2,
X=
= 16Ω
To determine the inductance of the inductor,
X = 2
fL
L =
=
= 0.05091
The inductance of the inductor is 0.051H.