Biology; Chemistry; Physics: Post your doubts here!

[SalmanPakRocks]

i was wondering well here is a circuit with a battery that supplies 6 volts if we put either 20 ohm resister or 30 whatever the amount is the battery still supplies 6 volts it isnt like that if we put 10 ohm resister the voltage gets higher value than 6 battery is still supllying a constant 6 volts regardless of the resistance offered by the resister.....so how is voltage directly proportional to resistance??? i may be wrong

Depends whether it is series or parallel circuit.

 

[AnGeL.Of.DaRkNeSs]

Depends whether it is series or parallel circuit.

doesnt matter em looking at the rating of the battery which states 6 volts wo to 6 hi rahe ga na agey resistance ager decrease ya increase kerey to CURRENT ki value differ kerey gi battery ka to fixed hai 6 volts jo usne supply kerna hai

 

[SalmanPakRocks]

doesnt matter em looking at the rating of the battery which states 6 volts wo to 6 hi rahe ga na agey resistance ager decrease ya increase kerey to CURRENT ki value differ kerey gi battery ka to fixed hai 6 volts jo usne supply kerna hai

yup! it would be 6 volts, yet again mis-understood the question

 

[Mayedah]

Any exceptionally difficult chemistry and physics paper from the past years ? Do suggest !!

 

[SalmanPakRocks]

Any exceptionally difficult chemistry and physics paper from the past years ? Do suggest !!

Do 80's

 

[Spidey21]

doesnt matter em looking at the rating of the battery which states 6 volts wo to 6 hi rahe ga na agey resistance ager decrease ya increase kerey to CURRENT ki value differ kerey gi battery ka to fixed hai 6 volts jo usne supply kerna hai

you shared a good question there..and yes you guys are right that its directly proportional that table in the end made me go wrong...sorry!!

 

[Spidey21]

not true... o2 is liberated if the other negative ion is not concentrated

its there in the Xtreme Revision section...

i was wondering well here is a circuit with a battery that supplies 6 volts if we put either 20 ohm resister or 30 whatever the amount is the battery still supplies 6 volts it isnt like that if we put 10 ohm resister the voltage gets higher value than 6 battery is still supllying a constant 6 volts regardless of the resistance offered by the resister.....so how is voltage directly proportional to resistance??? i may be wrong

JazakAllah for sharing

Mods please look to it...

 

[khizer shahab]

i was wondering well here is a circuit with a battery that supplies 6 volts if we put either 20 ohm resister or 30 whatever the amount is the battery still supplies 6 volts it isnt like that if we put 10 ohm resister the voltage gets higher value than 6 battery is still supllying a constant 6 volts regardless of the resistance offered by the resister.....so how is voltage directly proportional to resistance??? i may be wrong

in mentioned case ... when resistance is increased,voltage should be increased if it would not be constant!! In this case just current would decrease, keeping the equation valid!! i.e v=ir , r increased therfore i decrease so v = same(6 volts)!!!!!

 

[khizer shahab]

Do 80's

please post questions from 80's !!!

 

[Mayedah]

Do 80's

Haha have done some question from 80,s from classified

 

[AnGeL.Of.DaRkNeSs]

yeah like if resistance increase current decreases that satisfies that current is inversly proportional but then again THE CURRRENT is changing NOT the voltage supplied by battery

sare ye question pe socho baki POGO dekho lets hope someone clears it well

 

[Mayedah]

They are comparatively difficult !

 

[SalmanPakRocks]

Haha have done some question from 80,s from classified

Haha! Then just 'chill'

 

[Spidey21]

Haha have done some question from 80,s from classified

could you please share themn???

 

[dani jatt]

i really dont know from where to do revision for my biology exam , should i do pastpapers or book ???? if pastpapers from which year to which year

 

[Mayedah]

A 0.50 sample of vegetable oil reacted with 60cm^3 of hydrogen,measured at r.t.p
Assuming tht one molecule of the oil contains only one double bond calculate the relative molecular mass of the oil !

 

[dani jatt]

in chemistry i am confused in covalent bonding i am studying chemistry book the one written by christopher prescot ... how many examples of covalent bonding should i do excluding the ones in our book

 

[Spidey21]

A 0.50 sample of vegetable oil reacted with 60cm^3 of hydrogen,measured at r.t.p
Assuming tht one molecule of the oil contains only one double bond calculate the relative molecular mass of the oil !

whats the unit for the sample..

 

[SalmanPakRocks]

whats the unit for the sample..

Leave it, it's beyond our comprehension

 

[Spidey21]

Leave it, it's beyond our comprehension

lol...it was something like..

an apple weighs 0.08 kg...calculate the mass of the sun!!