GCSE OCR 21st Century How to affect electric current - OCR 21st Century Current-voltage graphs Electrical current depends on resistance and potential difference.

For each pair of results calculate the resistance, R using \(R = \frac{V}{I}\). Record your results in the third column of the table. Plot a graph of voltage, V on the y-axis v current, I, on the ...

One ampere equals a current flow of 6.25 x 10 18 electrons through a circuit in one second. At a fixed resistance, the higher the applied voltage (pressure), the more electrons will flow through a ...

The effective resistance between two nodes of a weighted graph is the electrical resistance seen between the nodes of a resistor network with branch conductances given by the edge weights. The ...