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High School/JEE/NEET/IPhO Physics | 17-19 Yrs

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  1.  
    2. Should it not be sin(wt pi/2)?
    1 years ago by Nihaal Tapasi

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  2.  
    3. how can i change the accent of physics galaxy video lectures?
    3 years ago by Jeevesh Pathak

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  3.  
    4. Sir, could you kindly explain how is the magnetic flux directed to the secondary coil by the soft iron core.........
    4 years ago by

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  4.  
    5. Sir, in the alternative method where you told "total function is periodic" did you mean that the period of the function i^2 is the half cycle of current??
    4 years ago by

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  5.  
    6. if v=L.di/dt should'nt I be =0?
    4 years ago by Ishiya kamoj

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  6.  
    7. best teacher for physics
    5 years ago by Sarju Panchal

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  7.  
    8. sir i know you have busy schedule sir i request u to pls upload advance illustration of AC....before jee advacned 2019 if possible..thanks in advance
    5 years ago by Sarju Panchal

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  8.  
    9. Sir resonance frequency means omega r (or) fr
    5 years ago by geetha

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  9.  
    10. How do we know which vale of current is used rms ,simple I or average value while solving numericals
    5 years ago by anand

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  10.  
    11. Can we apply the phasor as complex no. analysis in alternating current in CBSE board exam?
    5 years ago by Abhishek Baral

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  11.  
    12. Sir Can we say that a bandwidth is independent of capacitance i.e a RLC circuit is having same bandwidth as that of RL circuit ??
    5 years ago by Utsav Negi

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  12.  
    13. how to listen in hindi
    6 years ago by Pawan Rawat

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  13.  
    14. sir a question-how a=can we find the time taken by the current to change from the peak value to rms value if the alternating potential is given by V=220sin(100pi t) and a resistance of 20 ohm?
    7 years ago by Priyansh Tiwari
    Ans 1 ->
    If you have studied SHM then by its circular motion analysis it can be easily calculated...
    7 years ago by Physics Galaxy

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  14.  
    15. Why no advanced illustrations for AC?
    7 years ago by Ali Hasan

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  15.  
    16. A 10uf capacitor is connnected with an ac source E=200root2 sin (100t)V through an ac ammeter (it reads only rms value) What will be the reading of the ammeter?
    7 years ago by Yashraj Labde

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  16.  
    17. Kindly explain physical meaning and significane of phase difference
    8 years ago by Suneel Dhariwal

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  17.  
    18. Sir Do you have a video about resonance in parallel circuit?
    8 years ago by jack smith

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  18.  
    19. Why are we associating angles (Phase) with the resistance and reactance? It should be associated with V and I only and R WL and WC should be constant.
    8 years ago by Prateek Jain

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  19.  
    20. sir i do not solve circuits with lcr prallal combination give me some idea
    8 years ago by Arvind kumar meena

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  20.  
    21. Sinomegat is 0
    8 years ago by Riahav sharma

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  21.  
    22. How is avg value of sin2omegat is 1/2 and sinomegat is 1
    8 years ago by Riahav sharma
    Ans 1 ->
    Sinomegat is 0*
    8 years ago by Riahav sharma

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  22.  
    23. sir once expalin how to calculate time constant
    8 years ago by surya
    Ans 1 ->
    there is no ans or what
    8 years ago by surya

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  23.  
    24. express ac in ckt diagram as dc i.e how ac changes its direction andvoltage w.r.t time.
    8 years ago by hemanth goud
    Ans 1 ->
    .
    8 years ago by jeevan

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  24.  
    25. Respected sir I do not feel how emf is inversely proportional to current. i2 should be depends on load resistance ?
    9 years ago by sudeep khare

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  25.  
    26. How soft iron core helps in passing same magnetic field to secondary coil?
    9 years ago by sudeep khare

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  26.  
    27. Why we didn't take Irms to measure Iwattless?
    9 years ago by sudeep khare

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  27.  
    28. why e rms is not e/root2 here?
    9 years ago by pranjal
    Ans 1 ->
    In problem we are given with 500V rms value... unless specified peak value... always consider the given value at rms/effective value...
    9 years ago by Physics Galaxy

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  28.  
    29. Why haven't you given the proofs of result you taught in phasor algebra?
    9 years ago by Himansh
    Ans 1 ->
    There are some parameters of standard phasor impedances and rest I have taken... pl specify if you need any particular... you can also refer to download section for advance level content...
    9 years ago by Physics Galaxy

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  29.  
    30. two long parallel wires are at a distance 2d apart.they carry steady equal currents flowing out of the paper.the variation of magnetic field b along the line joining them is given by :
    10 years ago by kilari karthik
    Ans 1 ->
    approaching to infinite close to wires and minimum at midway...
    9 years ago by Physics Galaxy

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