Explanation

The ampere, symbol A, is the SI unit of electric current.

It is defined by considering the fixed  value of the elementary charge e as 1.602 176 634 x 1019,

where the unit C is equal to As and the second is defined by Δν Cs.

RK121222

Explanation

Arteries carry oxygen-rich blood away from the heart. They are hard on the outside, but  contain a smooth inner layer of epithelial cells to facilitate blood flow. The arteries also contain a strong, muscular middle layer that helps pump blood throughout the body. Capillaries connect  arteries to veins.

MUG 11-12-2022

Explanation

A voltmeter is an instrument used for measuring electric potential difference between two points in an electric circuit

Explanation

• Our universe become born about thirteen.7 billion years in the past in a huge expansion that blew area up like a massive balloon.
• That, in a nutshell, is the big Bang theory, which truly all cosmologists and theoretical physicists suggest.
• The evidence helping the idea is considerable and convincing.
  

Explanation

The distance traveled by a body in unit time is called the speed of the body.

S.I. unit of speed is meter per second (ms−1).

ND11623

Explanation

Radiocarbon dating is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon.