Answer:1.458 Btu
Explanation:
Given
radius of canister
Height of canister
Initial pressure
Initia ltemprature
Final pressure
as canister is rigid therefore change in volume is zero
therefore
=
=
volume of canister=
=
volume of canister=12872,038.8
now calculating mass of air
PV=mRT
substituting values
m=21.0192 gm
Therefore heat transferred =
=
=1539.052J=1.458Btu
The answer would be -62 because 62 x 1 equals 62 so that would be the answer.
Since the armature is wave wound, the magnetic flux per pole is 0.0274 Weber.
<u>Given the following data:</u>
- Number of armature conductors = 144 slots
- Number of poles = 4 poles
- Number of parallel paths = 2
To find the magnetic flux per pole:
Mathematically, the emf generated by a DC generator is given by the formula;
×
<u>Where:</u>
- E is the electromotive force in the DC generator.
- Z is the total number of armature conductors.
- N is the speed or armature rotation in r.p.m.
- P is the number of poles.
- A is the number of parallel paths in armature.
First of all, we would determine the total number of armature conductors:
× ×
Z = 864
Substituting the given parameters into the formula, we have;
×
×
<em>Magnetic flux </em><em>=</em><em> 0.0274 Weber.</em>
Therefore, the magnetic flux per pole is 0.0274 Weber.
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Answer:
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