Changes in charge, current and potential difference during the charging and discharging of a capacitor are all exponential-type behaviours. Specifically, the current that transfers charge to or from a capacitor (during charging or discharging respectively) is always greatest at first and declines to zero as time increases. During discharging, the charge loss and the drop … Continue reading Charging a Capacitor (analysis)
JMP Summer Challenge 2025
"If you love problem solving, science, or sport, and you're curious about how data analytics and visualization can reveal insights and tell compelling stories, this is the challenge for you. It’s also a great opportunity to stretch your creative muscles and try something new this summer." That is the burb introducing the 2025 Summer Challenge … Continue reading JMP Summer Challenge 2025
Death and Data Analysis
It sounds like an unlikely scientific challenge but a recent BBC Radio 4 program about dismembered feet that have been washed-up on Canadian and US shores is a great puzzle to tax inquisitive brains. Despite what may appear to be an off-topic context (for the usual range of physbang items) the story's challenge to make … Continue reading Death and Data Analysis
Summer challenge
While we wait for the GCSE results, what better to do than conduct an experiment, just for the fun of it? The project I am suggesting is the JMP Summer DOE Challenge, which runs from 11th July until the start of September and involves nothing more complicated than growing some cress seeds. Often in school … Continue reading Summer challenge
Resources for Electricity Generation
In school we talk about different ways to generate electricity as a potential exam topic but it's much, much more important than that. Russia's war with Ukraine has brought this fact sharply into focus as people start talking about a boycott of Russian oil and gas. At the same time, the UK is phasing-out its … Continue reading Resources for Electricity Generation
Summer Challenge
You may have better things to do during the summer vacation but, in case you find yourself getting bored, I have an investigation that you might like to tackle. The work is open to all of my students, both those of you who are still studying the GCSE course and those who have just finished … Continue reading Summer Challenge
Mr Tarrant's physbang 'blog 