Die diagram hieronder toon die spanningsuitset van 'n generator - NSC Physical Sciences - Question 9 - 2019 - Paper 1
Question 9
Die diagram hieronder toon die spanningsuitset van 'n generator.
+312
0 0,10 0,20 0,30 tyd (s)
312
9.1 Het hierdie generator splinteringe of sleepringe?
9.2 Wat... show full transcript
Worked Solution & Example Answer:Die diagram hieronder toon die spanningsuitset van 'n generator - NSC Physical Sciences - Question 9 - 2019 - Paper 1
Step 1
9.1 Het hierdie generator splinteringe of sleepringe?
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Answer
Die generator gebruik sleepringe.
Step 2
9.2 Watter EEN van die diagramme hieronder, A of B, toon die posisie van die generator se spoel by tyd = 0,10 s?
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Answer
Diagram B toon die posisie van die generator se spoel by tyd = 0,10 s.
Step 3
9.3 Bereken die wortelgemiddeldedikwaard (wgk)-potensiaalverskil vir hierdie generator.
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Die wortelgemiddeldedikwaard (wgk) potensiaalverskil, Vrms, kan bereken word met die formule:
V_{rms} = rac{V_{max}}{\sqrt{2}}
Hier is Vmax=312V, dus:
V_{rms} = rac{312}{\ ext{sqrt{2}}} ≈ 220,62 V
Step 4
9.4.1 Gemiddelde drywing wat deur die generator aan die toestel gelewer word
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Answer
Die gemiddelde drywing, Pgem, kan bereken word met die formule:
P_{gem} = rac{V_{rms}}{R}
Waar R = 40 Ω is. Dan:
P_{gem} = rac{220,62}{40} = 5,515 W
Step 5
9.4.2 Maksimum stroom wat deur die generator aan die toestel gelewer word
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Die maksimum stroom, Imax, kan bereken word met die formule:
I_{max} = rac{V_{max}}{R}
Hier is Vmax=312V, dus:
I_{max} = rac{312}{40} = 7,8 A
