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

Sometimes, it's the little things that are just so darn handy to have around. I'm often confronted with having to choose a parallel pair of resistors to get as close as possible to some non-standard ...

Previous tutorials have described that resistors may either be connected as a series circuit or a parallel circuit where the currents and voltages are obtained using Ohm’s Law. To produce more complex ...

This bundle contains everything you need to teach resistors in series and parallel. You get a complete set of clearly written concise notes that can be used as handout for your students, online guided ...

November 2026 examEven after finishing your study for the First-Class Amateur Radio Operator exam, do you ever get confused by similar calculations or numerical values, such as the combined value of ...

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 ...

When more than two resistors are connected in parallel the equation becomes:\(\frac{1}{R}=\frac{1}{R}_{1}+\frac{1}{R}_{2}+\frac{1}{R}_{3}\) The supply voltage is a measure of the energy supplied to ...

This is a complete and ready to go lesson on resistors in series and parallel circuits. The lesson starts with a recap starter on Ohm’s law and IV characteristics. The lesson then guides pupils ...