Ohm’s law in simple circuits

What you’ll practice

Ohm’s law is simple on paper, but real circuit questions often hide the key detail you need. This quiz helps you translate diagrams and word problems into the right equation and units.

Expect a mixed difficulty set that moves from direct V, I, R calculations to multi-step reasoning with series/parallel sections and measuring instruments.

Quiz format and difficulty controls

Each question has 4 options and there’s no timer, so you can focus on accuracy first and speed later. Choose your preferred question count and difficulty before starting to tailor the session to quick revision or deeper practice.

Common pitfalls to avoid

• Mixing up units (mA vs A, kΩ vs Ω) and forgetting to convert before calculating
• Treating series and parallel resistors the same way when finding equivalent resistance
• Using V=IR with the wrong voltage drop (total supply vs across one component)
• Ignoring internal resistance or meter effects when they’re stated in the question
• Rounding too early and drifting away from the closest option

How the mixed difficulty stays fair

You’ll see straightforward plug-in problems alongside questions that require one extra step, like finding an equivalent resistance before solving for current. The balance is designed to reinforce fundamentals repeatedly while still challenging you with common exam-style twists.