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Got it. I was using the wrong button on the calculator. I was using the exponent button instead of power button. Thanks!!!!!
Good morning Bob and thanks for your help. Yes I am using the exponent key on a calculator.
No matter how I do this, problem (A) is supposed to resolve to 20A. I get 200A using the equation given in (A)
The textbook equation is give in (A) without any changes. So I ask, what am I doing wrong in my evaluation of the formula? Is it possible that the formula is incorrect or the answer given is incorrect?
A) VL = Δi /Δt
(200*10-6) ((200*10-3)/2*10-6)
0.002 (( 2 ) / 0.00002)
0.002 * 1OOOOO
200V
B) VL = Δi /Δt
(200*1.0e-6) ((200*10-3)/2*10-6)
0.02 (( 2 ) / 0.00002)
0.0002 * 1OOOOO
20V
Where VL = Instant voltage on an inductor
Δi = Change in amperage
Δt – Change in time
The answer given in the textbook is “20 volts” However, using the book’s formula (A) I come up with 200V instead of the answer of 20V
So I created process “B” and I get the correct answer, but I cannot not explain why there is a difference between using the “Micro value (10-6) and using the exponent value 1.0e-6”
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