physics practical help needed...!!

[cutedevil]

when we measure any value frm experiment like current.
we measure in milli ampere.
bt when we hav to plot its graph then whch units nd its values shuld b use????
da original one ov milli ampere or convert it to Ampere (SI UNIT)

 

[mrpaudel]

if mentioned.....do so..otherwise...its better to plot the same u got.i mean..in milli ampere!!

 

[yubakkk]

you have to write current\10^-3A
in the axes

 

[cutedevil]

so if nt given we will plot with milli ampere...ryt ??? nd ryt ovr there 10^-3A
nd sum tyms futher eq is given to put gradient nd y-intercept in it...tht values will also b in milli ampere ???like y intercept ?

 

[cutedevil]

REPLYYY PLZZZ...!! ANY1

 

[yubakkk]

plz in physics first try as possible as write in si base unit.
it will better an wiil less confuse
but sometime nomatter.

 

[libra94]

always write the values in SI units and in appropriate significant figures!!

 

[xenaprongs]

The mA value is always cnvrtd into Ampere for graph and obviouly later fr gradient and y-intrcpt!
da examinr rarely ask fr cnvrting...u have to cnvrt it urself...i have chekd it in marking scheme!

 

[cutedevil]

can u plz tell a year or ppr regarding this issue ?

 

[cutedevil]

in any graph plotting u hav to take units in thier SI units nd nt in da units measured.....
nd shuld the y axis or x axis always strt frm zero ??? is it nesessary ?

 

[xenaprongs]

yup SI units r required! and its nt necessary...fr y-axis u could break da line...and fr x-axis its beter to start ur scale rite frm da start of axis where we usualy rite 0...like if we want to start our scale frm 40, we shud rite 40 at da v start.

 

[cutedevil]

okkk thanks ...!! =)

 

[xenaprongs]

yup SI units r requird! fr y-axis u cud break da line and fr x-axis its beter to rite start ur scale frm da start of x-axis where 0 iz riten down...like if u want to start frm 40...rite it in v start...try to prevnt breaking x-axis line...but if its esential fr u to break it..u have no choice den break it...
and fr elctricity parcticlz: c m/j 09 p 31, o/n 07 p 31, m/j 07 p31 and m/j 10 p 31.
bdw u giving paper 31 or paper 33???

 

[cutedevil]

33.....any predictions >?

 

[AayushR]

In most cases the axes do not start from 0.

 

[extrauni]

help neeeded...

let X be diameter.. wat do we write if asked
'Justify the number of significant figures you have given for X^2 (X square)?'

thanks in advance

 

[yubakkk]

significant figure is always same 0r 1 more so there is 2 sf in x thats why i have write d^2 in 2 or 3 sf
as far as i know

 

[cutedevil]

yea i guess correct...cauze s.f is always same or 1 more max.