Alford, R. and Pryor, N. (1992). Learning needs in industry: Meeting the challenge. In J. G. Hedberg and J. Steele (eds), Educational Technology for the Clever Country: Selected papers from EdTech'92, 39-48. Canberra: AJET Publications. http://www.aset.org.au/confs/edtech92/alford.html
L.PGRM: PROT_1 Question: ( 2) (98/03/001) -------------------------- A right-angled triangle has all 3 sides integers. If two of the sides are of length 12 and 13, what integer represents the third side? (a) Enter your numerical answer [ ] (b) When performing your calculation, whose theorem did you use? Enter your answer [ ] =========================================
Question: ( 2) (98/03/001) 7 Incorrect - Correct Answer is 5 If 12 and 13 were taken to be the sides, the hypotenuse would not be an integer. Therefore the hypotenuse is 13. Use Pythagoras' Theorem. Pythageras Correct You have been marked as correct, but the correct spelling is Pythagoras Marks 1.0 out of 2.0
Question 1. ( 7) (98/07/006) ----------------------------- In the circuit shown in the figure below, the two coils L1 and L2 are mutually coupled with a coupling M = +j4 ohms and with polarity dots shown at the top of each coil. Find the voltage ratio V2/V1 which results in zero current I1. Repeat for zero current I2. (Note the current directions, and V2/V1)
Question 1. ( 7) (98/07/006) (a) 0.111 Incorrect - Correct Answer is 0.707 (b) -22.2 Incorrect - Correct Answer is -45.0 (c) 0.333 Incorrect - Correct Answer is 0.400 (d) 44.4 Incorrect - Correct Answer is 36.9 The loop equations would be as follows: I1 (6 +j8) + I2 (+j4) = V1 I1 (+j4) + I2 (2 +j2) = V1 It is only the numerator determinants that are of interest Marks 0.0 out of 7.0