Electrical and Solar Energy Quiz

What is the SI unit of electric current?

• Volt

• Ampere

• Ohm

• Watt

Which type of solar panel is also called a "single crystal panel"?

• Monocrystalline

• Polycrystalline

• Thin-film

• DCR

What is the formula for calculating electrical power?

• V = IR

• P = VI

• I = V/R

• E = PT

In solar panels, the current density is always:

• Directly proportional to resistance

• Constant

• Dependent on light intensity

• None of the above

The commercial unit of electrical energy is:

• Joule

• Watt-second

• Kilowatt-hour

• Ampere-hour

What is the main purpose of a surge protection device (SPD)?

• To regulate voltage

• To protect against overvoltage

• To convert AC to DC

• To measure current

The short-circuit current of a solar cell depends on:

• The area of the cell

• The voltage applied

• The resistance of the cell

• The fill factor

What type of solar system has battery storage and operates during power cuts?

• On-grid

• Off-grid

• Hybrid

• DCR

Solar panels work efficiently when placed at a tilt angle equal to the:

• Altitude of the location

• Latitude of the location

• Longitude of the location

• Solar radiation intensity

In an electrical series circuit:

• Voltage remains constant across components

• Current remains constant through all components

• Resistance remains constant

• Power remains constant