Identifying resistors

A resistor is a two-terminal electrical or electronic component that opposes an electric current by producing a voltage drop between its terminals in accordance with Ohm's law: The electrical resistance is equal to the voltage drop across the resistor divided by the current through the resistor while the temperature remains the same. Resistors are used as part of electrical networks and electronic circuits.

Identifying resistors

Most axial resistors use a pattern of colored stripes to indicate resistance. Surface-mount resistors are marked numerically. Cases are usually brown, blue, or green, though other colors are occasionally found such as dark red or dark grey.
One can also use a multimeter or ohmmeter to test the values of a resistor.

Four-band axial resistors

Main article: Electronic color code
Four-band identification is the most commonly used color coding scheme on all resistors. It consists of four colored bands that are painted around the body of the resistor.
Each color corresponds to a certain number, shown in the chart.

The scheme is simple.

The first two numbers are the first two significant digits of the resistance value, the third is a multiplier, and the fourth is the tolerance of the value. Each color corresponds to a certain number, shown in the chart below. The tolerance for a 4-band resistor will be 1%, 5%, or 10%.

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Answer the questions based on the paragraphs above, and translate.
Some answers can be found on the internet.

1. What is a resistor?
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2. How does a resistor opose an electric current?
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3. Where does a Ohm's law apply to?
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4. What does the Ohm's law state?
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5. Give the mathematical equation that describes this relationship is:
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6. What does the “I” stand for?
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7. What does the “V” stand for?
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8. What does the “R” stand for?
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9. What do Most axial resistors use indicate resistance.
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10. How are Surface-mount resistors are marked?
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11. What can also be used to test the values of a resistor?
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12. Which is the is the most commonly used color coding scheme on all resistors?
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13. Describe how the coding scheme is composed?
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14. What is the the tolerance for a 4-band resistor?
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