(1a) Tabulate: Under s/n: 1,2,3,4,5 Under M(n): 140,120,110,84,66 Under tita(o): 24,32,38,51,62 Under Sin tita: 0.4067, 0.5299,0.6156, 0.7771,0.8829. Note that 1cm =20N (1aviii) -I would ensure that the meter rules balanced before the readings. -I would avoid error due to parallax (3a) (i)d1=1.40cm, d2=1.55cm, d3=1.75cm, d4=2.1cm, d5=2.3cm Real values of di d1=1.4*0.5=0.7mm d2=1.55*0.5=0.77mm d3=1.75*0.5=0.875mm d4=2.1*0.5=1.05mm d5=2.3*0.5=1.15mm (ii)Ia1=2.4A, Ia2=3.8A, Ia3=5.0A, Ia4=7.4A, Ia5=11.6A Ib1=2.4A, Ib2=3.6A, Ib3=5.2A, Ib4=7.5A, Ib5=11.6A (iii)I=(Ia+Ib)/2 I1=(2.4+2.4)/2=2.4A I2=(3.8+3.6)/2=3.7A I3=(5.0+5.2)/2=5.1A I4=(7.4+7.5)/2=7.45A I5=(11.6+11.6)/2=11.6A (3aiv)logd1=log0.7=-0.15mm logd2=log0.775=0.11mm logd3=log0.875=0.06mm logd4=log1.05=0.02mm logd5=log1.15=0.06mm logI1=log2.4=0.38 logI2=log3.7=0.57 logI3=log5.1=0.71 logI4=log7.45=0.87 logI5=log11.6=1.06 (3av) TABULATE: S/N; 1,2,3,4,5 di(cm);1.40,1.55,1.75,2.10,2.30 di(mm);0.70,0.78,0.88,1.05,1.15 Ia(A);2.4,3.8,5.0,7.4,11.6 Ib(A);2.4,3.6,5.2,7.5,11.6 I(A);2.4,3.7,5.1,7.5,11.6 logd!(mm) ;-0.15,-0.11,-0.06,0.02,0.06 logI1;0.38,0.57,0.71,0.87,1.06 (3bi) diameter(d)=1.09mm (ii) R=eL/A R5.0*10^-2*0.01)/(pie/4)* (0.001)^2 R5*10^-4)/(0.7855*1*10^-6) =6.37*10^2ohm P=I^2R =10^2*6.37*10^2 =6.37*10^4W (3avi) |Slope(s)=change in logI/ change in logd 0.87-0.57)/(0.02-(-0.11)) =0.3/0.13=2.3A (3avii) -I will ensure the circuit is open when no readings are not taken -i will ensure tight connection (3bi) diameter(d)=1.09mm (ii) R=eL/A R=(5.0*10^-2*0.01)/(pie/4)* (0.001)^2 R=(5*10^-4)/(0.7855*1*10^-6) =6.37*10^2ohm P=I^2R =10^2*6.37*10^2 =6.37*10^4W

Visit www.classicbiz.tk for more