Hello I am currently preparing for my final exams for sixth form in a UTC, which has 4 exam papers in January, they are Mathematics for Engineering, Science for Engineering, Principles of Mechanical for Engineering and Electrical and Electronic principles for Engineering.
I am comfortable with Mathematics, Science and Mechanical, however I struggle on the Electrical unit. I also take an A-level course on Mathematics
I am using revision material called Skeleton notes and I am struggling on a certain part on the Electronics side. Here is the link (Page 7): Link
So it's going to be this part https://ibb.co/s2skJXp (3rd last row where I have already found Inductance but not Resistance and Impedance) I have to find either the Impedance or the Resistance using the formulas below:
These are the formulas that we're supposed to use:
Formula that I wrote down on my Pukka pad
The section I got the formula from
Source for the 3 formulas (Page 15)
These are the answers for that question but I don't know how they got them. Link
I attempted this myself when I tried re-arranging the formula, or subbing it and re-arranging it but to no avail have I got the solution. It left me with either a math error or a higher value than the answer.
Calculator I use: CASIO fx-991EX CLASSWIZ (My calculator is in degrees and in calculate mode, I did not change the settings.)
Any help is greatly appreciated.
I am comfortable with Mathematics, Science and Mechanical, however I struggle on the Electrical unit. I also take an A-level course on Mathematics
I am using revision material called Skeleton notes and I am struggling on a certain part on the Electronics side. Here is the link (Page 7): Link
So it's going to be this part https://ibb.co/s2skJXp (3rd last row where I have already found Inductance but not Resistance and Impedance) I have to find either the Impedance or the Resistance using the formulas below:
These are the formulas that we're supposed to use:
Formula that I wrote down on my Pukka pad
The section I got the formula from
Source for the 3 formulas (Page 15)
These are the answers for that question but I don't know how they got them. Link
I attempted this myself when I tried re-arranging the formula, or subbing it and re-arranging it but to no avail have I got the solution. It left me with either a math error or a higher value than the answer.
Calculator I use: CASIO fx-991EX CLASSWIZ (My calculator is in degrees and in calculate mode, I did not change the settings.)
Any help is greatly appreciated.