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PHY101 - Physics Assignment No. 3 Solution and Discussion Fall 2017 Due Date: January 16, 2018

Assignment # 03

PHYSICS (PHY101)

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ASSIGNMENT NO.03 of Physics (PHY101) has uploaded on VULMS. You May download the Assignment file from VULMS. You are directed to submit your Assignment in MS-Word “.doc or docx” format till Monday, 16th January, 2018.

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Assignment 3: (Fall 2017)

PHYSICS (PHY101)

TOTAL MARKS: 25

Due Date: 15/01/2018

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Question # 1

A video game console operates potential difference of 12.00 V as shown in fig. The potential difference supplied by the power receptacle is 120 V AC. A transformer is used to convert one voltage to the other. If the secondary coil of the transformer (the 12.00 V side) has 1200 loops, how many loops does the primary coil have?                                                                  Marks = 10

Question # 2

  1. Is it true or wrong to say that components in series must have the same potential difference across them? Either yes or no explain it. Marks = 5
  2. Is it true or wrong to say that magnetic force vectors on charged particles point in the same direction as the magnetic field? Either yes or no explain it. Marks = 5
  3. What is the electric potential at the location of the test charge in the figure shown below? Marks = 5

Please upload Solution or Solution related idea help  etc  anyone ??

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Tariq Malik please solution bhi upload ker dein.

  • In a transformer, the ratio of the voltages on either side is directly proportional to the ratio of the number of loops. 

    => V1/N1 = V2/N2 

    In this case, V1 = 12V, N1 = 1200, V2 = 120V 

    => 12/1200 = 120/N2 
    => N2 = 12,000

    Within a magnetic core magnetic flux occurs. The flux is dependent on the primary current, and the primary turns 
    Ip*Np. This same flux flows in the core of the secondary, Is*Ns 
    so IpNp=Is*Ns 
    now on voltage, in accordance with Lenz's law, this flux causes in each turn, an induced voltage. so the total induced voltage is k*voltage/turn*turns *flux 
    Vs=kNs*flux 
    or Vs/Ns=k*flux. But on the primary, the same constant k isoccuring in generating the flux, so 
    Vs/Ns=Vp/Np 
    or 
    Vp/Vs=Np/Ns 
    120/12=1200/Ns 
    or Ns=12,000 turns

solution idea ques 1........

Please koi Assignment Solution upload ker dey ?  

It's Just an Idea Kindly You check also..... !!!!

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