Explanation

Explanation

Graphite is used for making the electrode in a dry cell.

Graphite is a good conductor of electricity, in fact, as good as metals

Graphite is used as an electrode because it conducts electricity without taking part in the chemical reaction

ND5.3.2023

Explanation

Copper is a chemical element with symbol Cu and atomic number 29.

Classified as a transition metal, Copper is a solid at room temperature.

Explanation

In free fall motion a body fall under gravitational force which we assume constant near earth. Thus body falls with uniform acceleration.

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RY632023

Explanation

Energy is carried by Stationary Wave. 

 Violet light has highest energy. 

Explanation

The transformer work only on an AC supply

because A transformer needs an alternating current that will create a changing magnetic field

note:

The transformer does not work on DC.

Direct current doesn't have a variable magnetic field

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ND17-1-2023

Explanation

Oxygen is the most abundant element contained within living organisms

Oxygen composes about 65% of the whole-body mass

while 

Calcium is the most abundant mineral in the human body,

calcium makes up 1.5 to 2% of the total body weight.

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ND17-1-2023

Explanation

tungsten is also among the heaviest metals.

Its electrical conductivity at 0 °C is about 28% of that of silver which itself has the highest conductivity of all metals.

Tungsten has the chemical symbol W

and is element 74 of the periodic table.

while 

Silver is the first-best conductor of heat.

Copper is the second-best conductor of heat.****

ND10-1-2023

Explanation

Explanation

Wet oxidation is a form of hydrothermal treatment. It is the oxidation of dissolved or suspended components in water using oxygen as the oxidizer.

AGM 25-12-2022