Question

2m,60cm,800 mm,180 cm,0.7m in order of magnitude starting with the smallest

Answer 1

Step-by-step explanation:

$2 \: m = 2000mm \\ 800mm \\ 180cm = 1800mm \\ 0.7m = 700mm \: \\ 0.7 m < 800mm < 180cm < 2m$

Answer 2

Answer:

Exercise : Solutions of Questions on Page Number : 169

Q1 :A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil?

Answer :

Number of turns on the circular coil, n = 100

Radius of each turn,r = 8.0 cm = 0.08 m

Current flowing in the coil, I = 0.4 A

Magnitude of the magnetic field at the centre of the coil is given by the relation,

Where,

μ0= Permeability of free space

= 4π × 10-7 T m A-1

Step-by-step explanation: