Solucions Física en context
Solucions Física en context
Q40
Calculeu la potència mitjana d'un aparell elèctric que funciona a 125 V de tensió eficaç i pel qual hi circulen 10 A d'intensitat eficaç.
La potència mitjana serà:
format('truetype')%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2216%22%3EP%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164ced1e48f486e642fc427eb8a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2220.5%22%20y%3D%2216%22%3E%3D%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2234.5%22%20y%3D%2216%22%3EV%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164ced1e48f486e642fc427eb8a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2245.5%22%20y%3D%2216%22%3E%26%23xB7%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2251.5%22%20y%3D%2216%22%3EI%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%225.5%22%20y%3D%2240%22%3EP%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164ced1e48f486e642fc427eb8a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2220.5%22%20y%3D%2240%22%3E%3D%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2242.5%22%20y%3D%2240%22%3E125%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164ced1e48f486e642fc427eb8a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2260.5%22%20y%3D%2240%22%3E%26%23xB7%3B%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2273.5%22%20y%3D%2240%22%3E10%3C%2Ftext%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%220.5%22%20x2%3D%220.5%22%20y1%3D%2248.5%22%20y2%3D%2268.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%2288.5%22%20x2%3D%2288.5%22%20y1%3D%2248.5%22%20y2%3D%2268.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%220.5%22%20x2%3D%2288.5%22%20y1%3D%2248.5%22%20y2%3D%2248.5%22%2F%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20x1%3D%220.5%22%20x2%3D%2288.5%22%20y1%3D%2268.5%22%20y2%3D%2268.5%22%2F%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%227.5%22%20y%3D%2265%22%3EP%3C%2Ftext%3E%3Ctext%20font-family%3D%22math164ced1e48f486e642fc427eb8a%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2222.5%22%20y%3D%2265%22%3E%3D%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20text-anchor%3D%22middle%22%20x%3D%2249.5%22%20y%3D%2265%22%3E1250%3C%2Ftext%3E%3Ctext%20font-family%3D%22Arial%22%20font-size%3D%2216%22%20font-style%3D%22italic%22%20text-anchor%3D%22middle%22%20x%3D%2278.5%22%20y%3D%2265%22%3EW%3C%2Ftext%3E%3C%2Fsvg%3E)
Solucions Física en context
Calculeu la potència mitjana d'un aparell elèctric que funciona a 125 V de tensió eficaç i pel qual hi circulen 10 A d'intensitat eficaç.
La potència mitjana serà: