panga icse − Q & A

Water in the electric kettle connected to a 220V supply took 5 min to reach its boiling point how long would it have taken if the supply voltage falls to 200v

What are fhe disadvantages of  connecting an appliance in parallel

Why is  the high tension wire has number of thin wires twisted together instead of having a single thick wire

Why is the mechanical advantage of a machine always less than or equal to the velocity
Why iy cant be more

Find the result of mixing 10g of ice at -10°C with 10g of water at 10°C Specidic heat capacity of ice 2.1 specific heat capacity pf water 4.2 and specific latent heat of ice is 336

the effect of different radiations on human tissue is measure in a unit sieverts (Sv) ...eg : exposure to x-rays would give 0.2 milli sieverts dose of radiations....It wont come but just in case ....section A question if asked......just remember that unit....guys come up with such questions which are hidden somewhere ......it'd be of great help

what are the 3 characteristics a medium should possess to propagate sound waves ?? medium particles should be elastic enough to come back to their mean positions 2nd one is that they should have enough inertia to prevent the loss of energy ...whats the 3rd one ?? i am not getting it

Guys one doubt....In earthing part why exactly the earthing is made...I knew it is made to protect the user as well as appliance but what about the fuse inside it ?? i mean is fuse not enough to break the flow of current ?? when high current passes through it due to short-circuit then why cant fuse do the work of stopping the flow of current into the appliance ? why is earthing made ?? plz explain coz i need to study a lot and i am rushing a bit...so am not thinking about one topic for long time as i fell short of time

Guys aren't numericals on motion included?

All of u do one thing press profil of this group and u will see students list press on add others and add as much as u can pls pls 





Admin ke best friend

PP12 lets see an open challenge who will win pit ur friends in this group and give how many u had added lets see who will win?????



Admin ka best friend

Rayner make ur frinds to join this grup and lets touch 50 today

Which has more biological damage -alph,gamma, or beta rays

Every body try to add ur frinds to this group and at final lets see whats the number

PP number of ashisprince -57,kits-58 after getting reply me





Admin ka best friend

Thouse who all r in faves of u can add them pls add sis(shubangini) PP12




Admin ka best friend

Shubhangini anand i gave u number because i added u soo pls add ur friends to this group and before asking question write your PP number  PP:-12



Admin ka best friend

PP number ofshubhangi anand:-55,bibekbir:-56


From:-(admin ki best friend)

Shodhan what is the PPnumber of bibekbir

Why is no one active?

PP 21 on which principle does dc motor work

PP 21what is the unit of magnetic field

guys lets start