Electronics quiz
Electronics basics quiz
Voltage, current, components and the vocabulary every circuit uses.
19 questions in the app. A few of them, with their answers:
What unit is electric current measured in?
- Volt
- Ampere ✓
- Ohm
- Watt
Answer Current — the flow rate of electric charge — is measured in amperes (A).
What unit is electrical resistance measured in?
- Volt
- Watt
- Ohm ✓
- Farad
Answer Resistance is measured in ohms (Ω), named after Georg Ohm.
In a circuit, voltage is best described as:
- The flow rate of charge
- The electrical potential difference that drives current ✓
- The energy consumed per second
- The opposition to current flow
Answer Voltage is the potential difference between two points that pushes current through a circuit.
Which component stores energy in an electric field?
- Resistor
- Capacitor ✓
- Inductor
- Diode
Answer A capacitor stores energy as an electric field between its two plates.
Which component stores energy in a magnetic field?
- Resistor
- Capacitor
- Inductor ✓
- Diode
Answer An inductor stores energy as a magnetic field around its coil when current flows through it.