HSC 2026 ELECTRONICS 1 MOST IMPORTANT QUESTIONS
CHAPTER 1 INSTRUMENTS
1. DRAW NEAT DIAGRAM OF CRT AND EXPLAIN EACH ELECTRODE IN IT
2. EXPLAIN ELECTROSTATIC FOCUSSING SYSTEM OF CRT
3. TYPES OF DEFLECTION SYSTEM IN CRT
4. USE OF AQUADAG COATING IN CRT
5. WRITE A SHORT NOTE ON SCREENS
6. BLOCK DIAGRAM OF CRO WITH FUNCTION OF EACH BLOCK
7. STATE AND GIVE USES OF ALL CONTROLS OF CRO
8. FUNCTION OF DELAY LINE AND BLANKING CIRCUIT IN CRO
9. EXPLAIN USE OF CRO FOR FREQUENCY, PHASE
10. EXPLAIN USE OF CRO FOR LISSJAOUS FIGURES
11. EXPLAIN HOW CRO DISPLAYS A WAVEFORM
12. EXPLAIN USE OF CRO FOR MEASUREMENT OF AC & DC VOLTAGE
13. STATE ANY 6 APPLICATIONS OF CRO
14. EXPLAIN WORKING OF FUNCTION GENERATOR WITH NEAT DIAGRAM
15. EXPLAIN WORKING OF TIME BASE GENERATOR WITH DIAGRAM
16. EXPLAIN DMM WITH A NEAT DIAGRAM WITH FUNCTION OF EACH BLOCK
17. ADVANTAGES OF DMM OVER ANALOG MULTIMETER