4. Compute the power dissipated by a. A 5-ohm resistor with 5-A current b. A 12-V battery with 12-A current A 4-ohm resistor whose voltage is 4-V across it C.
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- 24 A 6V battery, deliviers loma to three..... resistors in parallel, R₁ = 1kr, R2 = 2 kref=Rx-. Calculate: a) Current in Rx that is Ix. [Ans: I MA). b) Power dissipated. by. R.x. and R... [Anss 6mw, 36 mnd. Resistance ratio Rx/R [Anss: 6/1]- d) Current ratio I/Ix- (Ans: -6-/1]-12. i) Consider a PV Module with 12 solar PV cells with the Size of each 15cm x 10cm are connected in series. Choose the correct statement for the above. (Assume necessary data) a. The output voltage is 6 V, the output power is 275W b. The output voltage is 6 V, the output power is 0.275W c. The output voltage is 6 V, the output power is 27.5W d. The output voltage is 24 V, the output power is 2.25W 12. ii) For the above given same PV Module, Choose the correct statement. (Assume necessary data) a. The output power is 2.75W and the output current is 0.458A b. The output power is 27.5W and the output current is 4.58A c. The output power is 54W and the output current is 4.5A d. The output power is 275W and the output current is 45AConsider a PV Module with 24 solar PV cells with the Size of each 15cm x 10cm are connected in series. Choose the correct statement for the above. (Assume necessary data) a. The output voltage is 12 V, the output power is 540W b. The output voltage is 12 V, the output power is 54W c. The output voltage is 12 V, the output power is 5.4W d. The output voltage is 24 V, the output power is 2.25W
- The voltage regulation can be equal to zero when: OThe t and current is not too high. OThe p.f. is leading p.f. for any possible current. OThe p.f. is lagging p.f. for rated current.Question 4) How would the I-V behaviour be of the following cases. Start by explaining what they are: Metal n-type semiconductor CB CB VB VBWhat is the load current for the circuit shown in the figure? Please choose one: a. 9.0 mA b. 7.5 mA c. 3.0 mA D. 6.0 mA
- 2. A bank of nickel-cadmium cells is used as the emergency lighting supply for a hospital. There are 100 cells connected in series and each has an A-hr rating of 120 A-hr. The bank has to be replaced, and the manufacturer is no longer supplying nickel-cadmium cells. It is decided to replace the cells with lead-acid cells. How many lead-acid cells will be required if each has an A-hr rating of 60 A-hr, and how should they be connected?Pt A 6v battery, delivrers lomA to three resistors in paralkel, R, 21kr, R2=2K2,R3%3DRX. Calculate: a) Current in b) Power dissipatid by Rx and R,-[Anss 6mw,36mm. C) Resistance ratio Rx/R--(Ans: 615). ) Cnrrent ratio It/Ix Ans: 6/]. Rx sthat is In-[Anss I mA)-Four cells each of 2.10 volt internal emf are parallel connected together to make a battery. The internal resistances are 0.004, 0.005, 0.003 and 0.0025 ohm. Calculate for parallel connections: (a) internal emf and resistance of the single equivalent cell (b) current for a terminal voltage of 1.95 volts, (c)current in each cell
- Q11. What is LED? Plz Write like a summaryD7.36 Design the circuit of Fig. 7.54 to obtain a de emitter current of 1 mA, maximum gain, and a ±2-V signal swing at the collector, that is, design for Vc=+2.3 V. Let Vcc= 10 V and B = 100. RB Vec Rc Ra VBE Vcc A Rc lc +18=lg le HE Vc = VBE + IBRB (a) (b) Figure 7.54 (a) A common-emitter transistor amplifier biased by a feedback resistor R₁. (b) Analysis of the circuit in (a).The drawback to using this equivalent circuit, however, is that it is defined for a set of operating conditions that might not match the actual operating conditions. a.pi b.hybrid-pi c.hybrid d.re