Verified Solution • 2025–26 Session moderate

QPages 351-352: Q6: HC Verma: Concepts of Physics - Volume 2 Electric Current through Gases Pages 351-352: Q6 Solution: A diode, a resistor and a 50 Hz AC source are connected in…

⚠️ Common Exam Traps & Conceptual Pitfalls

A diode only conducts during the forward‑biased half‑cycle of an AC waveform. Thus, for a 50 Hz source there are 50 positive half‑cycles (not 100) per second, so the resistor sees 50 current pulses. Remember: pulse count equals the AC frequency, not twice it.

A diode, a resistor and a 50 Hz AC source are connected in series. The number of current pulses per second through the resistor is _________ .

Multiple Choice Options

  • A 25
  • B 50
  • C 100
  • D 200

Step-by-Step Verified Solution

**Answer:** (b) 50. **Step-by-Step Explanation:** A diode conducts only during positive half-cycles. For 50 Hz AC, there are 50 positive half-cycles per second, so 50 current pulses.

All Questions in this Chapter

QPage 351: Q1 QPage 351: Q2 QPage 351: Q3 QPage 351: Q4 QPage 351: Q5 QPage 351: Q6 QPage 351: Q7 QPage 351: Q8 QPage 351: Q9 QPage 351: Q10 QPage 352: Q1 QPage 352: Q2 QPage 352: Q3 QPage 352: Q4 QPage 352: Q5 QPage 352: Q6 QPage 352: Q7 QPages 351-352: Q1 QPages 351-352: Q2 QPages 351-352: Q3 QPages 351-352: Q4 QPages 351-352: Q5 QPages 351-352: Q6 QPages 351-352: Q7 QPages 351-352: Q8 QPages 351-352: Q9 QPages 352-354: Q1 QPages 352-354: Q2 QPages 352-354: Q3 QPages 352-354: Q4 QPages 352-354: Q5 QPages 352-354: Q6 QPages 352-354: Q7 QPages 352-354: Q8 QPages 352-354: Q9 QPages 352-354: Q10 QPages 352-354: Q11 QPages 352-354: Q12 QPages 352-354: Q13 QPages 352-354: Q14 QPages 352-354: Q15 QPages 352-354: Q16 QPages 352-354: Q17 QPages 352-354: Q18 QPages 352-354: Q19 QPages 352-354: Q20 QPages 352-354: Q21 QPages 352-354: Q22 QPages 352-354: Q23

Related Learning Resources & Exam Preparation

Chapter Practice Bank
Practice all topic-wise questions from Electric Current through Gases
Reference Textbook Solutions
Explore complete chapter exercises for HC Verma: Concepts of Physics - Volume 2
Competitive PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring