Tonight, the Ham College Standard class of 2009 commenced. Eight students have started the course - two of them WARSUG members
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Moderator: VK6ZMS
And frankly my head is hurting already!Zebedee wrote:We're up to resistors in series and parallel
A bridge rectifier requires 4 diodes.robbage wrote:OK here's a couple of questions in an exam for someone to answer for me
Which of the following statements is incorrect in relation to a full wave bridge rectifier circuit
A) It's transformer does not require a centre tap
B) The circuit requires two diodes
C) All diodes conduct at the same time
D) The output ripple frequency is 100 Hz
Yeah, that's how the question was presented to meNick wrote:No circuits to go with the questions
That's what I thought too.. also only two diodes conduct at any point in time, no?VK6ZMS wrote:A bridge rectifier requires 4 diodes.
True - but the question specifically referred to a bridge rectifier, which makes a centre-tapped transformer no good - as far as I understand it anyway.Nick wrote:You can attain full wave rectification with two diodes and a centre tapped transformer as well
Oh???robbage wrote:All I know is I need to do a lot more reading on transmitters and receivers. And propagation.
I booked in for the exam in late MarchZebedee wrote:Oh???robbage wrote:All I know is I need to do a lot more reading on transmitters and receivers. And propagation.
What are we up to?