a torch bulb is rated 2.5v and 750ma.calculate (i)its power,(ii)its resistance and (iii) the energy consumed,if this bulb is lighted for four hours.
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V=2.5V I=750 mA=0.75A I)Power=VI P=2.5 x 0.75 P=1.875W=1875mW II)R=V/I R=2.5/0.75 R=3.3Ohm(approx.) III)Energy consumed=Pt Energy=1.875x4 E=7.5Wh Hope it helps ... Plzz mark as brainliest
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hope this will help you
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