Gas Fitter Practice Test 2025 – The All-in-One Guide to Mastering Your Certification!

Question: 1 / 455

When two 10 ohm resistors are connected in series, what is the net result?

0 ohms

5 ohms

10 ohms

20 ohms

When two resistors are connected in series, their resistances simply add together. In this case, each resistor has a resistance of 10 ohms. When these two resistors are connected in series, the total resistance of the circuit becomes the sum of the individual resistances.

Thus, you calculate the total resistance by adding 10 ohms from the first resistor to 10 ohms from the second resistor, yielding a total of 20 ohms. This is foundational in circuit theory, where the series connection results in increased total resistance, directly proportional to the number of resistors involved.

This understanding is essential for solving problems in electrical circuits as it influences how voltage and current behave according to Ohm's law.

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