Physics path · GCSE Physics

What potential difference operates the locker’s release coil?

1 Compare

2 Problem

3 Fix

4 Apply

Compare answers: current.
Find the problem: pending.
Fix the answer: pending.
Try a new question: pending.

Practice question

A parcel-locker door release uses an electromagnet coil with a resistance of 30 Ω. The current through the coil is 0.40 A. Use V = I R to calculate the potential difference across the coil.

Which answer would score higher?

Not sure where to start?

Official curriculum

4.2.1.3 Calculating potential difference and current

This challenge practises knowledge and exam skills from the official GCSE science curriculum. Use these sources to see the exact subject content and its wider Key Stage 4 context.

AQA specification 4.2.1.3 Calculating potential difference and current GOV.UK Key Stage 4 science programme

Step time 0:00