That is nonsense, also known as jibberish
Answer:
160 m
Explanation:
distance covered in 1 s = 8 m
therefore, distance covered in 20 s = 8 * 20 m = 160 m
Answer with Explanation:
We are given that
Diameter of coil=d=0.115mm
Radius, r=
Using 
Electric field=E=0.235V/m
T=55 degree C



(a).We know that

Substitute the values


(b).Current density,
Using the formula

c.Total current,I=JA
Where 

Using the formula

I=0.076A
d.Length of wire=l=2m

Substitute the values

The frequency and period of any wave are reciprocals.
Frequency = 1/period and Period = 1/frequency .
That means that the product of (frequency) times (period) of any wave is always the same. The product is always ' 1 ', with no unit.