Question

The difference measurement of length of a rod are 4.5,4.2.4.4,4.3,4.6,(in cm) Calculate the following

Answer 1

Explanation:

ANSWER

Here, l=2.4m,r=4.6mm=4.6×10 −3 m

q=4.6×10 −7 C

Linear charge density, λ= lq = 2.4−4.2×10 −7 =−1.75×10 −7 Cm −1

Electric field,E= 2πε 0 r = 2×3.14×8.854×10 −12 ×4.6×10 −3

−1.75×10 −7 =−6.67×10 5 NC −1

Answer 2

Answer:

mean=4.5, absolute value=0.125,relative value=0.027, percentage error= 2.7