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| Can someone please help me with the following physics questi http://petrochemical.gronerth.com/forumchem/viewtopic.php?f=19&t=181980 |
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| Author: | klow [ Sun Oct 08, 2017 6:09 pm ] |
| Post subject: | Can someone please help me with the following physics questi |
Can someone please help me with the following physics question?Can someone please help me with the following physics question? In her living room, Felicity has the following items: -three 100 W lamps -a TV that takes 2 A -an audio system that takes 1 A -a 2 kW electric heater -A 3 kW air conditioning unit The whole room is supplied from a 220 V a.c. power supply through one miniature circuit breaker (MCB) . What rating of MCB should she fit, if the values of 10 A, 20 A, 30 A, 40 A, 50 A and 60 A are available? ( 2 marks) |
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