{"id":8276,"date":"2020-07-01T09:21:34","date_gmt":"2020-07-01T01:21:34","guid":{"rendered":"https:\/\/www.indicatorlight.com\/?p=8276"},"modified":"2021-06-29T16:10:12","modified_gmt":"2021-06-29T08:10:12","slug":"resistor-in-led-indicator-light","status":"publish","type":"post","link":"https:\/\/www.indicatorlight.com\/kr\/resistor-in-led-indicator-light\/","title":{"rendered":"Resistor in LED Indicator Light","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

What is resistor<\/h3>\n

Resistor is an electrical component that reduces the electric current.<\/p>\n

The resistor’s ability to reduce the current is called resistance and is measured in units of ohms (symbol: \u03a9).<\/p>\n

If we make an analogy to water flow through pipes, the resistor is a thin pipe that reduces the water flow.<\/p>\n

Ohm’s law<\/h3>\n

The resistor’s current\u00a0I<\/i><\/em>\u00a0in amps (A) is equal to the resistor’s voltage V<\/i><\/em>\u00a0in volts (V)<\/p>\n

divided by the resistance\u00a0R\u00a0<\/i><\/em>in ohms (\u03a9):<\/p>\n

I=V\/R<\/strong><\/em><\/p>\n

The resistor’s power consumption\u00a0P<\/i><\/em>\u00a0in watts (W) is equal to the resistor’s current\u00a0I\u00a0<\/i><\/em>in amps (A)<\/p>\n

times the resistor’s voltage\u00a0V<\/i><\/em>\u00a0in volts (V):<\/p>\n

P=I*V<\/strong><\/em><\/p>\n

The resistor’s power consumption\u00a0P<\/i><\/em>\u00a0in watts (W) is equal to the square value of the resistor’s current\u00a0I<\/i><\/em>\u00a0in amps (A)<\/p>\n

times the resistor’s resistance\u00a0R<\/i><\/em>\u00a0in ohms (\u03a9):<\/p>\n

P=I*R<\/strong><\/em><\/p>\n

The resistor’s power consumption\u00a0P<\/i><\/em>\u00a0in watts (W) is equal to the\u00a0square value of the resistor’s voltage\u00a0V<\/i><\/em>\u00a0in volts (V)<\/p>\n

divided by the resistor’s resistance\u00a0R<\/i><\/em>\u00a0in ohms (\u03a9):<\/p>\n

P=V\/R<\/strong><\/em><\/p>\n

Resistors in parallel<\/h3>\n

The total equivalent resistance of resistors in parallel\u00a0R<\/i><\/em>Total<\/i><\/sub><\/em>\u00a0is given by:<\/p>\n

\"\"<\/p>\n

So when you add resistors in parallel, the total resistance is decreased.<\/p>\n

Resistors in series<\/h3>\n

\"\"<\/p>\n

The total equivalent resistance of resistors in series\u00a0R<\/i><\/em>total\u00a0<\/i><\/sub><\/em>is the sum of the resistance values:<\/p>\n

R<\/i><\/em>total<\/i><\/sub><\/em>\u00a0=\u00a0R<\/i><\/em>1<\/sub>+\u00a0R<\/i><\/em>2<\/sub>+\u00a0R<\/i><\/em>3<\/sub>+…<\/p>\n

So when you add resistors in series, the total resistance is increased.<\/p>\n

Dimensions and material affects<\/h3>\n

The resistance R in ohms (\u03a9) of a resistor is equal to the resistivity\u00a0\u03c1<\/i><\/em>\u00a0in ohm-meters (\u03a9\u2219m) times the resistor’s length l in meters (m) divided by the resistor’s cross sectional area\u00a0A<\/i><\/em>\u00a0in square meters (m2<\/sup>):<\/p>\n

Resistor image<\/h3>\n

\"\"<\/p>\n

Resistor symbols<\/h2>\n

\"\"<\/p>\n

Resistor color code<\/h3>\n

The resistance of the resistor and its tolerance are marked on the resistor with color code bands that denotes the resistance value.<\/p>\n

There are 3 types of color codes:<\/p>\n

4 bands: digit, digit , multiplier, tolerance.<\/p>\n

5 bands: digit, digit, digit , multiplier, tolerance.<\/p>\n

6 bands: digit, digit, digit , multiplier, tolerance, temperature coefficient.<\/p>\n

Resistance calculation of 4 bands resistor<\/b><\/strong><\/h4>\n

R<\/i><\/em>\u00a0= (10\u00d7digit<\/i><\/em>1\u00a0<\/sub>+\u00a0digit<\/i><\/em>2<\/sub>) \u00d7\u00a0multiplier<\/i><\/em><\/p>\n

Resistance calculation of 5 or 6 bands resistor<\/b><\/strong><\/h4>\n

R<\/i><\/em>\u00a0= (100\u00d7digit<\/i><\/em>1\u00a0<\/sub>+ 10\u00d7digit<\/i><\/em>2<\/sub>+digit<\/i><\/em>3<\/sub>) \u00d7\u00a0multiplier<\/i><\/em><\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

What is resistor Resistor is an electrical component that reduces the electric current. The resistor’s ability to reduce the current is called resistance and is measured in units of ohms (symbol: \u03a9). If we make an analogy to water flow through pipes, the resistor is a thin pipe that reduces the water flow. Ohm’s law … Continue reading Resistor in LED Indicator Light<\/span> →<\/span><\/a><\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":8279,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"acf":[],"views":1025,"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/www.indicatorlight.com\/kr\/wp-json\/wp\/v2\/posts\/8276"}],"collection":[{"href":"https:\/\/www.indicatorlight.com\/kr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.indicatorlight.com\/kr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.indicatorlight.com\/kr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.indicatorlight.com\/kr\/wp-json\/wp\/v2\/comments?post=8276"}],"version-history":[{"count":0,"href":"https:\/\/www.indicatorlight.com\/kr\/wp-json\/wp\/v2\/posts\/8276\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.indicatorlight.com\/kr\/wp-json\/wp\/v2\/media\/8279"}],"wp:attachment":[{"href":"https:\/\/www.indicatorlight.com\/kr\/wp-json\/wp\/v2\/media?parent=8276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.indicatorlight.com\/kr\/wp-json\/wp\/v2\/categories?post=8276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.indicatorlight.com\/kr\/wp-json\/wp\/v2\/tags?post=8276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}