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naveo Trst?0.36.A torch bulb is rated at 3V and 600mA. Calculate it's a) Power b) Resistancec) Energy consumedghted for 4 Hrs. |
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Answer» P=I^2RP=I×I×RP= VI V=3V I=6×10^3AP=3×6×10^3P=1.8×10^4W R=V/I V=3V I=600×10^3A 3/(600×10^3) 3/6×10^5 0.5×10^-5ohms E=I^2×R×T I×I×R×T I×V×T I=6×10^5A V=3V T= 4h =(4×60×60)seconds =1.44×10^4seconds 6×10^5×3×1.44×10^4 25.92×10^9×1.44×10^4 2.592×10^4J |
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