WorksheetsSolar Energy Quiz
Total questions: 30
Worksheet time: 10hrs 0mins
What does a photovoltaic (PV) system primarily do?
Store sunlight as heat
Convert sunlight directly into electricity
Reflect sunlight for cooling
Use water to generate power
Which of the following is a renewable source of energy?
Coal
Natural Gas
Solar
Oil
The Philippines is suitable for solar energy because of its:
Cold climate
High solar irradiance year-round
Large desert areas
Abundant coal deposits
Which law provides incentives like Feed-in Tariff (FIT) and Net Metering for renewable energy in the Philippines?
RA 9136
RA 9513
RA 8749
RA 9003
A PV system that requires batteries and works independently of the grid is called:
Grid-Tied
Hybrid
Off-Grid
Smart Grid
Which PV system combines solar panels, batteries, and possibly a generator while still connected to the grid?
Off-Grid
Grid-Tied
Hybrid
Microgrid
Which current flows only in one direction?
Alternating Current (AC)
Direct Current (DC)
Residual Current
Pulsed Current
According to Ohm's Law, Voltage = ?
Current ÷ Resistance
Current × Resistance
Power ÷ Current
Resistance ÷ Current
If a device operates at 220 V and 11 A, what is its resistance?
10 Ω
20 Ω
15 Ω
25 Ω
Which of the following is NOT an advantage of solar energy?
Reduces carbon emissions
Diversifies the energy mix
Depends heavily on fossil fuels
Provides rural electrification
Resistance is measured in:
Watts
Amperes
Ohms
Volts
Which factor decreases the resistance of a conductor?
Increasing length
Increasing resistivity
Increasing cross-sectional area
Increasing temperature
The symbol "ρ" (rho) in electricity refers to:
Power
Current
Resistivity
Energy
If R1 = 2Ω, R2 = 3Ω, R3 = 5Ω in series, total resistance is:
5Ω
7Ω
10Ω
15Ω
Resistors in series have the same:
Voltage
Current
Power
Resistance
If R1 = 4Ω and R2 = 6Ω in parallel, the total resistance is:
2.4Ω
5Ω
10Ω
1Ω
Resistors in parallel share the same:
Current
Voltage
Resistance
Power
Which arrangement gives lower total resistance than the smallest resistor?
Series
Parallel
Series-Parallel
None of the above
The resistance of a conductor is directly proportional to its:
Cross-sectional area
Length
Voltage
Current
The formula for resistance is:
R = ρL/A
R = Aρ/L
R = L/Aρ
R = V/I
Which has higher resistivity?
Copper
Aluminum
Silver
Rubber
When resistors are connected end-to-end, they are in:
Series
Parallel
Mixed connection
Loop circuit
A 30V source supplies 5A to two resistors in series. What is the total resistance?
2 Ω
4 Ω
6 Ω
10 Ω
If the current drops from 5A to 3A after doubling one resistor, what concept is being applied?
Ohm's Law
Kirchhoff's Law
Joule's Law
Power Law
What is the main advantage of parallel circuits in household wiring?
Increases resistance
Decreases current
Each device gets full voltage
Reduces power
If three resistors 2Ω, 3Ω, and 6Ω are connected in parallel, the total resistance is:
11Ω
6Ω
1Ω
2Ω
Which material is considered a poor conductor due to high resistivity?
Silver
Aluminum
Plastic
Copper
What happens to resistance if the length of the conductor is halved?
Doubles
Halves
Remains the same
Becomes zero
In a circuit, current is inversely proportional to:
Power
Resistance
Voltage
Energy
A circuit has 12V and 4Ω resistance. What is the current?
1A
2A
3A
4A
