16. In Fig. zero centre and ideal PMMC voltmeters M₁ and M₂ will read—
    
    
    
    

1. 1. – 10 V, 10 V

   
   
   

   2. 0, 10 V

   
   
   

   3. – 10 V, 7·07 V

   
   
   

   4. 10 V, 7·07 V

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---

17. In Fig. PIV required for the diode is—
    
    
    

1. 1. 300 V

   
   
   

   2. 100 V

   
   
   

   3. 200 V

   
   
   

   4. 400 V

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

---

---

18. A single-phase one-pulse diode rectifier is feeding an RL load with freewheeling diode across the load. For conduction angle β, the main diode and freewheeling diode would, respectively, conduct for—
    

1. 1. π, π – β

   
   
   

   2. π, β – π

   
   
   

   3. β, π

   
   
   

   4. β – π, π

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---

19. A single phase full bridge diode rectifier delivers a load current of 10 A, which is ripple free. Average and rms values of diode currents are respectively—

1. 1. 10 A, 7·07 A

   
   
   

   2. 5 A, 10 A

   
   
   

   3. 5 A, 7·07 A

   
   
   

   4. 7·07 A, 5 A

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---

---

20. In Fig. V₁ and V₂ are zero centre PMMC voltmeters. When a sinusoidal signal is applied, V₂ reads + 20 V. The reading of the voltmeter V₁ is…… volts.
    
    
    

1. 1. 20 V

   
   
   

   2. – 20 V

   
   
   

   3. 10 V

   
   
   

   4. None of these

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---