It is important to note that the direct of flow of the electricity current in the Linear Machine is anti-clockwise direction. The resultant effect of this is such that is stand at variance with the change in flux as force is going the right direction. See attached Image (Illustration I).
<h3>What is the magnitude of the current?</h3>
Recall that Force (f) = il xB
Given that Force (F) = 10N; and
Magnetic Field Density B = 0.5T
Hence,
10 = i x 0.2 x 0.5
[Note that Width is converted to Meters from millimeters that is 200 mmm = 0.2m]
10 = 0.1i
i = 10/0.1
i = 100A
<h3>
What is the Induced Voltage Across the metal bar?</h3>
Note that Vg = Vde + IR
Vg = 10 + 100 x 0.05
Vg = 10 + 5
Vg = 15v
<h3>
What is the final speed of the metal bar?</h3>
The final speed of the bar is given as V
Recall that Induced Voltage is VB x L
That is:
15 = V x 0.5 x 0.2;
15 = 0.1 V
make V the subject of the formula:
V = 15/0.1
V = 150m/s
<h3>
What is the status of the Machine? a motor or generator?</h3>
Given that the current being supplied is in DC hence the machine is a generator. [Vdc x i]
<h3>What is the electric power of the source?</h3>
The electric power of the source is:
Vdc x i
= 10 x 100
= 1,000 watts
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The best answer is A) <span>Because war was forced upon them by Hitler
Stalin was no idealist, and had no issue with letting Hitler run amok in Europe, the Mediterranean, and the Middle East. He pursued a neutrality agreement with Japan and, in 1940, was in the process of negotiating a similar treaty with Hitler. Stalin wanted some non-German European territory out of the deal, and Hitler decided that he'd prefer to invade the Soviet Union.
In this way, Germany forced the USSR to ally with the Allies, although it could very well have sided with the Axis if things had turned out differently.
Best answer is A </span>
Answer:
E. More than thirteen
Explanation:
S is the set of multiples of 7, meaning 7, 14, 21, 28 and so on to infinity
T is the same but with 13 instead
Both sets are infinite.
The first intersection would be 7x13 (91)
Though it would be difficult to find 14 of them to prove it, we don't have to since we know both sets are infinite and will eventually have intersections the higher they go