For the Second-Class Electrician Exam, calculate current in parallel resistors by using the product-over-sum method

In the written exam for the Second-Class Electrician license, there are problems that ask you to find the current flowing ...

How to avoid losing points on the basics of electricity for the Fire Defense Equipment Officer Class 4 exam: Check the scope of exemptions and cover everything from Oh…

For the Class 4 Fire Defense Equipment Officer exam, which covers automatic fire alarm systems, the written test includes ...
BBC

Calculating resistance DA - CCEA

When two resistors are connected in parallel the equation becomes:\(\frac{1}{R}=\frac{1}{R}_{1}+\frac{1}{R}_{2}\) The supply voltage is a measure of the energy supplied to each electron. The voltage ...