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| what is the unite of ludness
in seline it is givenphon and it says the level of sound has a unit decibal so unit of loudness is phon or decibal |  | 
| asked by Rtstud (mdarfath) 7 years ago | 
| 2 | 
| What is the length of nichrome wire of resistance 5.6 ohms, if the length of a similar wire is 80 cm  and its resistance is 4.2ohms |  | 
| asked by Jeff mckinley (chende) 7 years ago | 
| 1 | 
| Pls check out page 194 question 15 .is it correct |  | 
| asked by Kousalya Senthilkumar (laks2002) 7 years ago | 
| 1 | 
| Any good electricity numericals? |  | 
| asked by Momo (zenab13) 7 years ago | 
| 1 | 
| any economics students?? |  | 
| asked by Aryan Kapoor (aryan9917) 7 years ago | 
| 0 | 
| Why is soft iron core used in a D.C. Motor and an A.C. Generator?
Can it be because of soft iron's high magnetic permeability and low retentivity? |  | 
| asked by RaBh (rahulbhardwaj2002) 7 years ago | 
| 2 | 
| Explain why it appears that energy released in fusion is less than fission, but it is not so. |  | 
| asked by Pratham Shah (pratham2313) 7 years ago | 
| 1 | 
| The power rating of an electric bulb is 40W 220 V. Find the power when the potential difference is reduced to 200V
--- My answer is approx. 33 W, is it right? |  | 
| asked by Ragini Jain (adityajain1234) 7 years ago | 
| 5 | 
| What is the principal of magnifying glass? |  | 
| asked by Nehal G (nehalg) 7 years ago | 
| 1 | 
| Should we learn value of wavelength and frequency for red to violet(all colours). |  | 
| asked by Paul Stefen (japaul) 7 years ago | 
| 2 |