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As well as technical information in the electrical world, the correct understanding and application of this information is of great importance. Common misconceptions, especially about resistors, increase the difficulties that electrical masters face in their work. Under the heading “Resistance Misconceptions: Electrical Masters and Facts”, we will consider the common misconceptions about resistance values and replace them with their truths.

Resistance Misconceptions: Electrical Masters and the Truth
Resistance Misconceptions: Electrical Masters and the Truth

The Myth of Constant Resistance Value

One of the misconceptions that electrical masters often fall into is the belief that resistance values remain constant under all conditions. But in reality, the resistors vary depending on various factors. For example, an increase in temperature changes the resistance of some resistors; the effects become serious in high-power applications.

Color Codes and Readability Issues

Electricians read the colors correctly and necessarily verify the resistance values with a multimeter in case of doubt. A common misconception is the idea that resistors with a large physical size have a high resistance value. However, large-sized resistors carry more power. Because this situation is not directly related to the resistance value.

Heat Generation and Resistance Values

However, the perception that high resistance values will produce more heat becomes misleading. Because the production of heat actually depends on the power, which consists of multiplying the resistance and the current. Therefore, high-resistance components attract little current and produce less heat than expected.

Serial and Parallel Connection Confusions

Electrical masters sometimes misunderstand the effects of serial and parallel connections. In a serial connection, the resistors are collected, the total resistance increases; in parallel, it decreases, the calculations become misleading.

Quality and Tolerance December Misconceptions

Instead of focusing only on the nominal value, tolerance ranges should also be taken into account when choosing a resist December. Some electrical masters may think that low tolerance ranges are necessary only for December precision applications. However, in all kinds of circuits that require high quality and accuracy, tolerance values are of critical importance.

Power Rating and Actual Use

The power rating written on a resistor does not mean that that resistor can continuously handle the specified maximum power. Electrical masters, in order to ensure the safety margin and prevent overheating, resistors should generally use below their rated power.

In our article “Resistance Misconceptions: Electrical Masters and Facts”, where we examined common misconceptions about resistance values and properties, we emphasized the effects of accurate information on occupational safety and productivity. Overcoming these misconceptions of electrical masters will enable them to provide more informed and competent service and contribute to the safer operation of electrical systems. Always reaching the right information and avoiding misconceptions is a sine qua non for professionals working with electricity. You can check out our other blog posts by clicking here.

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