Objective Questions Short notes Objective questions (Answers are given below) With same maximum voltage between conductors,the ratio of copper volumes in 3-phase, 3-wire system and 1-phase, 2-wire system is(a) 4/3 (b) 3/4(c) 5/3 (d) 3/5 The volume of copper required for an a.c. transmissionline is inversely proportional to(a) current (b) voltage(c) power factor (d) both … Read more
Objective Questions Short notes Objective questions (Answers are given below) A FET consists of a(a) source (b) drain(c) gate (d) all of the above. FETs have similar properties to(a) PNP transistors(b) NPN transistors(c) thermonic valves(d) unijunction transistors. For small values of drain-to-source voltage,JFET behaves like a(a) resistor(b) constant-current source(c) constant-voltage source(d) negative resistance In a … Read more
Objective Questions Short notes Objective questions (Answers are given below) The decibel gain of a cascaded amplifierequals the(a) product of individual gains(b) sum of individual gains(c) ratio of stage gains(d) product of voltage and current gains. If two stages of a cascaded amplifier havedecibel gains of 60 and 30, then overall gainis ………………… dB.(a) 90 … Read more
NCERT Class 12 Biology Book PDF (2026–27 Edition): Download the official NCERT Class 12 Biology textbook(s) — Biology (English Medium) — updated for the 2026–27 academic session under the latest rationalised 2026–27 CBSE syllabus. Use the tables below to download the complete book as a single PDF, open individual chapter PDFs, or read our chapter-wise … Read more
A change in the present condition of the mind can also be written as ________. (A) a change in thoughts(B) a change in words(C) a change of place(D) a change of mood Answer 9. (D) a change of mood Related Questions on Dust of Snow Before the falling of the snow, how was the poets … Read more