In this video lesson, we answer:

• Why do we use divider principles and how do they save us calculation effort and time?
• When can we apply voltage divider rule and what type of electrical circuits can they help us with?
• What are the main assumptions about the circuit we want to solve using voltage divider rule?
• Which electrical quantity can we avoid calculating when we apply voltage divider rule?
• What is the relationship between individual element voltages and the total voltage of a power supply?
• How do the voltage divider formulas look like and how do we make sure we get all the terms correct?
• What do we need to pay special attention to and how do we achieve proper indices matched?

We also cover Current Divider Principle in this video lesson and we provide the answers to:

• How is current divider similar to voltage divider and how do they differ?
• When do we apply current divider rule and what type of electrical circuits do they help us with?
• When are the voltages known as opposed to knowing the currents?
• What are the “branches” in electrical circuits and how do they relate to current divider rule?
• How does the current split or branch and the reason we call this circuit current “divider”?
• What are the main assumptions about the circuit we want to solve using current divider rule?
• How do the current divider formulas look like and how do we make sure we get all the terms correct?
• What do we need to pay special attention to and how do we properly match indexes in formulas?
• Which electrical quantity we can avoid calculating when we apply current divider rule?
• What is the relationship between individual branch currents and the total current of an external network?

These two divider rules and their formulas can be learned easily and later on applied not only in the process of solving various problems, but also as a help to develop logical thinking and understanding of electrical circuits in general.