NOTE: ^ or power means Raise to Power. Comma(,) means Next line eg: SN: 1,2,3,4,5 means under SN u will get 1,2,3,4 and 5 i.e under SN, you will get 1, under 1, u get 2, under 2, u get 3 and So on. So using comma means that you will draw a table and place the numbers AS i explained above.

(3) Tabulate
S/n: 1,2,3,4,5,6 R (ohms): 1.00,2.00,3.00,4.00,5.00,6.00 L(cm): 40.00,57.50,66.50,72.50,77.00,80.00 R ^-1: 1.00,0.50,0.33,0.25,0.20,0.17 L^-1: 0.0250,0.0170,0.0150,0.0140,0.0130,0.0125 0, (Vi) -i ensured that parallax error is avoided -i ensured that the key is tight
(3bi) I. The Volt: V II. The coulomb: C III. The kilowatt-hour: Kwt/h IV. The Ampere: A.

(3bii) L2=L1/E1 =90cm/1.50v L2=60cm