Tag: Kirchhoff’s laws

  • Transistor biasing, Lecture-XIX and XX.

    Transistor biasing, Lecture-XIX and XX.

    Transistors operate as amplifiers when external DC supply voltages are used and a desired current IC is produced. The control voltage or current are known as “BIAS”. Usually we need two biasing DC sources, one in the input circuit and one in the output circuit. But this is inconvenient and costly. We can instead use…

  • Physics midterm exam, for class XII (ISC-II) for C.I.S.C.E. board.

    Physics midterm exam, for class XII (ISC-II) for C.I.S.C.E. board.

    PART-I Total 10 marks Each question carries 1 mark.  Answer all. (10)               Question 1 [Objective, 10 X 1] (a) Which of the following drops faster? A. an electric dipole‘s electric field                      B. an electric dipole‘s electric potential C. a point charge’s electric field                            D. a point charge’s electric potential

  • Physics midterm, for class XII, for C.B.S.E. and State boards.

    Physics midterm, for class XII, for C.B.S.E. and State boards.

    Question 1 Which of the following drops faster? A. An electric dipole’s electric field                      B. An electric dipole’s electric potential C. A point charge’s electric field                            D. A point charge’s electric potential Question 4 Chose the correct one A. Kirchhoff’s loop rule is applied to a junction of incoming and outgoing current? B. According to…