Physics answer continuation of number1 (1 continues) precaution: (i)i ensured that m1 is completely immersed in water (ii)i ensure that parallax error is avoided when taking readings (1biii) weight in air air=0.25 weight in water=0.15 upthrust=0.25-0.15=0.10 relative denstity= weight in air/weight in water relative density= 0.25/0.10 =2.5 (1) continues slope slope=y2-y1/x2-x1 9.4-3.0/1.2-0.43 =8.31 (3) tables of value sn:1,2,3,4,5,6 I/A:0.1,0.2,0.3,0.4.0.5,0.6, V/ V:0.50,1.50,2.00,2.30,2.50,3.0 I/I^-1/ A^-1:10.000,5.000,3.333,2.00 V^-1/ V^-1:2.000,0.667,0.500,0.400 (3 continues) precautions: -i ensured tight connection -i ensured error due to parallax when taking reading from the voltmeter (3bi) Ammeter: -it is used for measuring current -it is denoted by A voltmeter: -it is for measuring voltage -it is denoted by V 3 cell. I=V/(R+r), V summation of d cascaded emfs, r is d summation of d cascaded internal resistances since, its same cell then. r=r=r, Therefore I=V/ (R+3r) (3 ) continues slope=y2-y1/x2-x1= 79-60/4-1.2 =19/2.8 =6.786
Posted on: Wed, 12 Jun 2013 10:41:29 +0000
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