Solar energy and fuel cell

Solar energy is converted into DC current by

• Inverter

• PV panel

• Battery

• Charge controller

When radiation is smaller, the energy that can be produced by PV panel is larger.

• TRUE

• FALSE

Good current conduction in a PV panel is provided by

• Anti-reflective coating

• Metal back contact

• Contact grid

When silicon is doped with Phosphorus, it becomes

• P-type silicon

• N-type silicon

Solar charge controller is not needed if PV panel is connected to a battery.

• TRUE

• FALSE

The efficiency of a PV panel depends on

• Load voltage

• Surface area

• Temperature

• All of these

The efficiency of a PV panel is typically

• 10%-20%

• 20%-30%

• 30%-40%

• 40%-50%

How does a fuel cell generate electricity?

• Converts wind energy to electrical energy

• Converts kinetic energy to electrical energy

• Converts chemical energy to electrical energy

• Converts rotational energy to electrical energy

What is the main fuel for hydrogen fuel cell?

• Hydrogen

• Oxygen

• Water

• Carbon

What type of fuel cell that is suitable for military applications?

• Molten carbonate fuel cell

• Phosphoric acid fuel cell

• Alkaline fuel cell

• Solid oxide fuel cell