Water at 15°C is to be discharged from a reservoir at a rate of 18 L/s using two horizontal cast iron pipes connected in series
1 answer:
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Answer:
Reflection Coefficient =
SWR=3.65
Position of
position of
Explanation:
To determine the above answers, let outline the useful formulas
refection coefficient .
where terminal impednce = (30-i50)Ω
characteristics impedance= 50Ω
Secondly, the Standing Wave Ratio,
Now let us substitute values and solve,
a.
multiplying the numerator and denominator by the conjugate of the denominator. we have
by carrying out careful operation, we arrived at
To express in polar form i.e
to get the angle
alpha=
hence the Reflection Coefficient,<em>p</em> =
b. we now determine the Standing Wave Ratio,
c. to determine the position of the maximum voltage nearest to the load,
we use the equation
were is the wavelength of 8cm
lets convert α to rad by multiplying by π/180
.
d. also were we have minimum voltage,there the maximum current will exist, to find this position nearest to the load
.
since the voltage minimum occure at 1.11cm. we can conclude that the current maximum also occur at this point i.e 1.11cm
Answer:
(b) 7.2 mJ
Explanation:
ENERGY STORED IN CAPACITOR: the energy is stored in capacitor in electric field
which can be calculated by expressions
E= c
=
=7200× J
= 7.2× J
=7.2 mJ