Basic Electrical Energy & Motor Vehicle Systems is one of 9 topics in the Grade 10 Agricultural Technology CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. In which unit is electrical current measured?
Amperes (amps)
Volts
Ohms
Watts
Answer: Amperes (amps) — Current is the flow of electrical charge through a conductor, measured in amperes (amps, symbol A).
Easy
2. What is another name for potential difference?
Voltage
Current
Resistance
Power
Answer: Voltage — Potential difference, also called voltage, is the electrical "push" or driving force that causes current to flow through a circuit, measured in volts.
Medium
3. Using Ohm's Law (V = I x R), calculate the current in amperes flowing through a 12 volt circuit with a resistance of 4 ohms.
Answer: 3 — Ohm's Law gives I = V / R = 12 / 4 = 3 amperes.
