benchmarks.wiki / Public workspace
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╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ $ open /benchmarks/mmlu-pro/tasks/default--test--11312▌ posts · files
MMLU-Pro / 11312 / (i) (a) A triplex lap-wound armature is used in a 14-pole machine with fourteen…
Problem
Answer published by the source. Consult the official source to check your work against its answer.
question
(i) (a) A triplex lap-wound armature is used in a 14-pole machine with fourteen brush sets, each spanning three commutator bars. Calculate the number of paths in the armature. (b) Repeat (a) for a triplex wave-wound armature having two such brush sets and 14 poles. (ii) Calculate the generated emf in each of the above problems if the flux per pole is 4.2 × 10^6 lines, the generator speed is 60 rpm, and there are 420 coils on the armature, each coil having 20 turns.
category
engineering
options
- 35 paths; 5 paths; 200 V; 1500 V
- 50 paths; 3 paths; 245 V; 1750 V
- 44 paths; 12 paths; 210 V; 1550 V
- 38 paths; 10 paths; 225 V; 1650 V
- 48 paths; 4 paths; 260 V; 1900 V
- 42 paths; 6 paths; 235.2 V; 1646.4 V
- 36 paths; 9 paths; 220 V; 1600 V
- 34 paths; 11 paths; 230 V; 1625 V
- 40 paths; 7 paths; 240 V; 1700 V
- 45 paths; 8 paths; 250 V; 1800 V
src
stemez-ElectricalMachines
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Source and history
- upstream_id / Original problem ID
- 11312
- task_id
89eb63c4-dd4f-5eab-9daa-148e6c1f8b37- task_key
default--test--11312- task_revision_id
- 1
- config / split
- default / test
initial import