Important questions of ac class 12
1.Why is the use of AC voltage preferred over DC voltage? Give two reasons. [All India 2014] Ans.The use of AC voltage is preferred over DC voltage because of (i) the loss of energy in transmitting the AC voltage over long distances with the help of step-up transformers is negligible as compared to … Zobacz więcej 10.A light bulb is rated 150 W for 220 V AC supply of 60 Hz. Calculate 1. the resistance of the bulb 2. the rms current through the … Zobacz więcej 13. (i) When an AC source is connected to an ideal capacitor, then show that the average power supplied by the source over a complete cycle is zero. (ii) A lamp is connected in … Zobacz więcej WitrynaTo Find the Frequency of the AC Mains with a Sonometer - Physics Practical Class 12 Viva Questions with Answers What is a sonometer? Answer: A sonometer is a device to showcase the relationship between the frequency of the sound produced by the string when it is plucked and the length, tension, and mass per unit length of the string.
Important questions of ac class 12
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Witryna13 lut 2024 · Important Short Questions With Answers – DC Circuit (Direct Current) Class 12 Physics. February 13, 2024 March 24, 2024 / DC Circuit / By Ajay Jha. Q. A wire is stretched to double its length. ... 1 thought on “Important Short Questions With Answers – DC Circuit (Direct Current) Class 12 Physics” uzwal. December 20, 2024 …
WitrynaCBSE Sample Papers for Class 12; CBSE Previous Year Question Paper. CBSE Previous Year Question Papers Class 10; CBSE Previous Year Question Papers … Witryna25 mar 2024 · Best Air Conditioner Frequently Asked Question (FAQs) Nowadays air conditioning machines have become essential to be installed in the house, …
WitrynaThe below mentioned page consist of Important questions for CBSE class 12 physics Chapter-7 Alternating Current . Consist of all types of questions objective and subjective based on new pattern of CBSE. Do solve chapters wise Important questions CBSE class 12 Physics. Solve questions Given in NCERT text book with the help of … Witryna16 kwi 2024 · On an extra-hot Vaughan summer day, longer AC cycling is normal. If your thermostat is set extremely low, though, consider raising the temperature a few …
Witryna16 lip 2024 · 240 V ac means it is the RMS value of ac voltage. The amplitude of this voltage VM = 240√2 = 340 volt. Power consumed in a circuit is never negative. The constant value of dc which produces the same heat through a resistive element, due to the alternating current, is known as the root mean square value of ac.
Witryna3 paź 2024 · Answer: (c) Q.4. According to Faraday’s law of electromagnetic induction. (a) electric field is produced by time varying magnetic flux. (b) magnetic field is produced by time varying electric flux. (c) magnetic field is … shaped by charlotteWitrynaClass 12 Accounts (session 2024-24) paper by CBSE will be of 80 marks. In this video A+STUDY YT sir will covering : Important questions on trading a/c ,p&l ... pontiac vehicle historyWitrynaAlternating Current Important Questions are given in this article. The chapter Alternating Current has a weightage of 4 to 5 marks in the CBSE Class 12 Examination … pontiac ugly suvWitrynaWelcome to our YouTube video on "Important Questions on Differentiation with concepts" for Maths class 12th. In this video, we'll be discussing some of the m... pontiac vibe door handleWitrynaImportant Questions for Class 12 Accountancy are prepared by the subject matter experts from the latest version of CBSE books. It is suggested for the students to … pontiac v8 timing marksWitryna10 kwi 2024 · Important questions for Class 12 Physics Chapter 7 are available on this page in a downloadable PDF format. The students can practice these important questions to gain more knowledge and clarify every concept. Practising important questions for Class 12 Physics Chapter 7 helps students score good marks in the … pontiac vibe cabin air filterWitryna10 kwi 2024 · CBSE Class 10th and 12th assessment scheme for board exam 2024 has been changed. Weightage of MCQs and Competency Based Questions is increased … pontiac vibe awd wiki