The SI base units have the dimensions of: length, mass and time.
<h3>What are SI base units?</h3>
The SI base units are the internationally accepted system of units of fundamental quantities.
These SI base units consist of system of units of measurement starting with seven base units, which are as follows:
- second (s): the unit of time
- metre (m): The unit of length kilogram (kg): the unit of mass
- ampere (A): the unit of electric current
- kelvin (K): the unit oftemperature
- mole (mol.): the unit of amount of substance
- candela (cd):the unit of luminous intensity
Learn more about SI base units
brainly.com/question/4950932
<h2>
All of these</h2>
Option ( iv ) is the correct answer.
<h3 /><h3>
☛ <u>Definition</u></h3>
A vector quantity the physical quantity that has both direction as well as magnitude.
Answer:
False
Explanation:
Solid particles have the least amount of energy, and gas particles have the greatest amount of energy. The temperature of a substance is a measure of the average kinetic energy of the particles. A change in phase may occur when the energy of the particles is changed.
Answer:
The current through the wire is equal to 0.8 A.
Explanation:
Given that,
The length of a copper wire = 2 m
Potential difference = 24 mV
The current through the wire is 0.40 A.
The new potential difference is 48 mV.
We need to find the current through the wire.
As the potential difference is doubled for second wire. So the new current will be :
I' = 2I
= 2 × 0.4
= 0.80 A
So, the current through the wire is equal to 0.8 A.
