Q6. Calculate the output power from a module if its efficiency is 31.5 %, input power density is 1000 W/m2 and area of the module is 45.8 inch by 29.65 inch. (1 inch2 = 0.00064516 m2)
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Q6. Calculate the output power from a module if its efficiency is 31.5 %, input power density is 1000 W/m2 and area of the module is 45.8 inch by 29.65 inch. (1 inch2 = 0.00064516 m2)
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- A string of 26 identical Christmas tree lightsare connected in series to a 120 V source. Thestring dissipates 65 W. P1: One of the bulbs burns out. The lamp has awire that shorts out the bulb filament when itburns out, dropping the resistance of the bulbto zero.What is the resistance Rnew of the lightstring now?Answer in units of Ω. P2: Find the power Pnew dissipated by the stringnow.Answer in units of W.In recent years, practical hybrid cars have hit the road—cars in which the gasoline engine runs a generator that charges batteries that run an electric motor. These cars offer increased efficiency, but significantly greater efficiency could be provided by a purely electric car run by batteries that you charge by plugging into an electric outlet in your house.But there’s a practical problem with such vehicles: the time necessary to recharge the batteries. If you refuel your car with gas at the pump, you add 130 MJ of energy per gallon. If you add 20 gallons, you add a total of 2.6 GJ in about 5 minutes. That’s a lot of energy in a short time; the electric system of your house simply can’t provide power at this rate.There’s another snag as well. Suppose there were electric filling stations that could provide very high currents to recharge your electric car. Conventional batteries can’t recharge very quickly; it would still take longer for a recharge than to refill with gas.One possible…K, and a generator of voltage V. Mark as true or false the following statements concerning the stor phase of V, V, V, Vc and VR- 1. V, and VR are in phase. 2. Vị leads Ve by 90°. 3. V is at angle o relative to VR- 4. VL-Vc is in phase with V,. 5. Vc lags VR by 90°. 5 give V. = 10.76 V. V.=5.68 V.