So, first post on the site and already i'm crying out for help, sorry about that. Very rude of me. Anyway, here's my speil:

So...i'm training to be an Engineer. But one of the classes i was required to take last year was a Module in Electrical Engineering (very basic electrical engineering at that). Now, my problem is, i suck, is suck at all electrical stuff so effing hard. I always have. Never quite got it through my thick skull. Thermodynamics, trig, algebra, mechanics, all that good stuff. That i can do. Ask me anything past Ohm's or Kirchoff's law and i'm buggered.

Basically, even though i went to all bar two of my lectures last year, i still managed to fail the exam and had it handed back to me as a referral. So basically i have until friday to complete it and i've been slacking (as per at the moment, it's hard to keep motivated when you're jobless i find).

Anyway, now we come to the crux of the problem. I'm stuck. Stuck on something probably really simple to you. But it's giving me problems. Anyway. Here's the question:

A transformer has a primary to secondary turns ratio pf 20:1. If the secondary voltage is v(t) = 20sin(2π3000t) volts. Determine the:

1. expression for the primary voltage. (I assume Vprimary = 20xVsecondary = 400V)

2. peak voltage across the resistor (well for Vsecondary = PV = 20V but...i dunno)

3. Peak current through the resistor

4. peak power dissapated by the resistor

5. peak power dissapated by the diodes

With the diagram below:

Anyway, if someone could give me a quick walkthrough of the solution, or link me to a site where something similar is provided it would be very much appreciated.

EDIT: and don't be surprised if i end up posting almost the entire paper up here. I really am just

So...i'm training to be an Engineer. But one of the classes i was required to take last year was a Module in Electrical Engineering (very basic electrical engineering at that). Now, my problem is, i suck, is suck at all electrical stuff so effing hard. I always have. Never quite got it through my thick skull. Thermodynamics, trig, algebra, mechanics, all that good stuff. That i can do. Ask me anything past Ohm's or Kirchoff's law and i'm buggered.

Basically, even though i went to all bar two of my lectures last year, i still managed to fail the exam and had it handed back to me as a referral. So basically i have until friday to complete it and i've been slacking (as per at the moment, it's hard to keep motivated when you're jobless i find).

Anyway, now we come to the crux of the problem. I'm stuck. Stuck on something probably really simple to you. But it's giving me problems. Anyway. Here's the question:

A transformer has a primary to secondary turns ratio pf 20:1. If the secondary voltage is v(t) = 20sin(2π3000t) volts. Determine the:

1. expression for the primary voltage. (I assume Vprimary = 20xVsecondary = 400V)

2. peak voltage across the resistor (well for Vsecondary = PV = 20V but...i dunno)

3. Peak current through the resistor

4. peak power dissapated by the resistor

5. peak power dissapated by the diodes

With the diagram below:

Anyway, if someone could give me a quick walkthrough of the solution, or link me to a site where something similar is provided it would be very much appreciated.

EDIT: and don't be surprised if i end up posting almost the entire paper up here. I really am just

*that*bad at this stuff.
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