Question Answers Marks Ans 1. Radiowaves > Infrared light > Blue light > X-rays 1 Ans 2. For a large variation of current, Voltage across Zener diode does not change. 1 Ans 3. We have two dipoles at 60o to each other. On solving we get equivalent 1 magnitude P. Ans 4. 1 Ans 5. Power factor = 0.5 = cosφ 1 φ=cos-1(0.5) φ=60 Ans 6. 1 1 Ans 7. Ideal capacitor means infinite resistance for dc. When an source is used , the 2 current flows continuously, but we know that capacitor has dielectric (air) between its plates. So, ideally there is no current, and the would be incomplete. In real, capacitor is charged due to contribution of varying electric field. The current between the capacitor plates is given by displacement current. Id= . Ans 8. p-n junction reverse bias 1 1 Ans 9. L=2.0 H , C=2 μF = 2 X 10-6 F R= 10Ω Q- factor = 1
Question Answers Marks Ans 1. Radiowaves > Infrared light > Blue light > X-rays 1 Ans 2. For a large variation of current, Voltage across Zener diode does not change. 1 Ans 3. We have two dipoles at 60o to each other. On solving we get equivalent magnitude P. 1 Ans 4. 1 Ans 5. Power factor = 0.5 = cosφ φ=cos-1(0.5) φ=60 1 Ans 6. 1 1 Ans 7. Ideal capacitor means infinite resistance for dc. When an source is used , the current flows continuously, but we know that capacitor has dielectric (air) between its plates. So, ideally there is no current, and the would be incomplete. In real, capacitor is charged due to contribution of varying electric field. The current between the capacitor plates is given by displacement current. Id= . 2 Ans 8. p-n junction reverse bias 1 1 Ans 9. L=2.0 H , C=2 μF = 2 X 10-6 F R= 10Ω Q- factor = 1