Question

Correlation between coal: thermal energy ::water storage:

Answer 1

Correlation between coal: thermal energy::water storage: Hydro Energy.

The water is stored by creating Dams across and is used to form hydro energy by passing the water through turbines.

Hydro energy is considered as the cheapest, cleanliest and best source of energy. It is one of the popularly known renewable energy resources.

Answer 2

Explanation:

• The flow of charge at per unit time is called electric current.

• The charge passing per unit time through a given place is the magnitude of electric current at that place.

• SI unit of current is Ampere (A).

• If one coulomb of charge passing through a place in one second, then the current is said to be one ampere.

✧ Mathematical term

• I = Q/t

here,

I is the current

Q is the charge

t is the time.

You can also use Ohm's Law to Calculate the Electric current.

• V = IR

where ,

V is the Potential Difference/Voltage.

I is the Electric Current.

R is the Resistance .