If a three-stage amplifier has individual stage gains of 10 db, 5 db and 12 db, then total gain in db is ___________

A. It is a simple unit B. Calculations become easy C. Human ear response is logarithmic D. None of the above

A. There is considerable power loss B. There is hum in the output C. Electrical size of coupling capacitor becomes very large D. None of the above

A. 3 db B. 66 db C. 20 db D. 200 db

A. 5 db B. 2 db C. 10 db D. 3 db