AC
/ˌeɪ ˈsiː/noun
उच्चारण ए सी
एयर कंडीशनर, एसी
Core word
- 1
[C/U] informal
air conditioning, or an air conditioner: a machine that keeps the air in a room or vehicle cool
एयर कंडीशनर, एसी
- Please switch on the AC; it is very hot in here.
- Our classroom has no AC, only ceiling fans.
- The AC in the bus broke down in the middle of the journey.
- 2
[U] technical
alternating current: an electric current that regularly changes its direction
प्रत्यावर्ती धारा (ए.सी.)
- The electricity supplied to our homes is AC, not DC.
- A generator can produce AC.
- Radhika learnt the difference between AC and DC in Physics.
Opposite DC
§Structures (grammar patterns) 4
AC as a countable noun (an air conditioner)
When AC means the machine, it is countable and takes a or an before it, because the letters are pronounced 'ay-see'.
जब AC का अर्थ मशीन हो, तब यह countable noun है और इसके पहले 'an' आता है, क्योंकि इसका उच्चारण 'ए-सी' है।
- We have fitted an AC in the library.
- Two ACs are not working in the reading hall.
AC as an uncountable noun (air conditioning)
When AC means the cooling system in general, it is uncountable and has no plural or article.
जब AC का अर्थ सामान्य रूप से ठंडा करने की व्यवस्था हो, तब यह uncountable है; इसका plural या article नहीं लगता।
- The bus has AC, so the journey in June was bearable.
- Is there AC in the exam hall?
in AC / with AC / AC + coach, room, bus
Use in for the place that is cooled and with for the facility. AC is also used before a noun to describe it.
ठंडे किए गए स्थान के लिए 'in' और सुविधा के लिए 'with' का प्रयोग होता है। AC किसी noun के पहले विशेषण की तरह भी आता है।
- Radhika booked a ticket in an AC coach.
- I prefer a room with AC during the summer.
AC (alternating current) as an uncountable noun
In physics, AC is the current that regularly reverses direction. It is contrasted with DC and takes no article.
Physics में AC वह धारा है जो नियमित रूप से अपनी दिशा बदलती है। इसकी तुलना DC से की जाती है और इसके पहले article नहीं लगता।
- Homes in India are supplied with AC at 230 volts.
- A transformer works only with AC, not DC.
+Collocations 4
verb + AC
switch onturn offfitrepairservicerun
- Please switch off the AC when you leave the room.
AC चलाने, बंद करने और ठीक कराने से जुड़े verbs।
adjective + AC
splitwindowcentralenergy-efficientnoisy
- We bought a split AC because it makes less noise.
AC के प्रकार बताने वाले adjectives।
AC + noun
coachbusroommechanicfilterremote
- The AC filter should be cleaned every month.
AC के बाद आने वाले सामान्य nouns।
AC + current / supply (physics)
AC voltageAC generatorAC motorAC circuitAC supply
- The school laboratory has an AC generator for demonstrations.
Physics में प्रयुक्त शब्द-समूह।
“More examples 5
- Radhika travelled to Jaipur in a two-tier AC coach.
राधिका ने जयपुर की यात्रा two-tier AC coach में की।
- The AC in our classroom stopped working in the middle of the test.
परीक्षा के बीच में हमारी कक्षा का AC बंद हो गया।
- Too much AC can make your throat dry during the summer exams.
गर्मियों की परीक्षाओं के दौरान बहुत अधिक AC से गला सूख सकता है।
- The electrician explained that a fan runs on AC, while a mobile battery stores DC.
बिजली मिस्त्री ने समझाया कि पंखा AC पर चलता है, जबकि मोबाइल की बैटरी DC जमा करती है।
- Many offices set the AC at 24 degrees to save electricity.
कई कार्यालय बिजली बचाने के लिए AC को 24 डिग्री पर रखते हैं।
!Common mistakes 2
✗ Please off the AC before you leave.
✓ Please switch off the AC before you leave.
Off is not a verb in standard English; use switch off or turn off.
Standard English में 'off' क्रिया नहीं है; 'switch off' या 'turn off' का प्रयोग करें।
✗ I bought a AC for my room.
✓ I bought an AC for my room.
AC begins with a vowel sound (ay), so use an, not a.
AC का उच्चारण स्वर-ध्वनि 'ए' से शुरू होता है, इसलिए 'a' नहीं, 'an' लगाएं।
✓In the exam
Notes
AC stands for air conditioner or air conditioning in daily use, and for alternating current in Physics.
रोज़मर्रा में AC का अर्थ air conditioner या air conditioning है, और Physics में alternating current।