Test: Basic BJT Circuits - Electronics and Communication Engineering (ECE) MCQ

The transistor in circuit shown in fig. has β = 200. Determine the value of voltage V_o for given value of V_BB.

If V_BB = 0

The transistor in circuit shown in fig. has β = 75. Determine the value of voltage V_o for given value of V_BB.

If V_BB = 1V

The transistor in circuit shown in fig. has β = 200. Determine the value of voltage V_o for given value of V_BB.

If V_BB = 2V

The transistor shown in the circuit of fig. has β = 150. Determine V_o for given value of
I_Q in question

If I_Q = 0.1 mA

The transistor shown in the circuit of fig. has β = 150. Determine V_o for given value of  I_Q in question

If I_Q = 0.5 mA

The transistor shown in the circuit of fig. has β = 150. Determine V_o for given value of  I_Q in question

If I_Q = 2mA

For the circuit in fig. V_B = V_C  and  β = 50. The value of V_B is

For the circuit shown in fig. V_CB = 0.5 V and β =100. The value of I_Q is

For the circuit shown in fig. the emitter voltage is V_E = 2 V. The value of α is

For the transistor in fig. β = 50. The value of voltage V_EC  is

The current gain of the transistor shown in the circuit of fig. is β = 125. The Q-point values (I_CQ , V_CEQ ) are

For the circuit shown in fig. , let β = 75. The Q-point (I_CQ , V_CEQ ) is

The current gain of the transistor shown in the circuit of fig. is β = 100. The values of Q-point (I_CQ , V_CEQ ) is

For the circuit in fig. , let β = 60. The value of V_ECQ  is

All transistor in the N output mirror in fig. are matched with a finite gain β and early voltage V_A = ∞. The expression for each load current is

Consider the basic three transistor current source in fig. Assume all transistor are matched with finite gain and early voltage V_A  = ∞.The expression for I_o is

Consider the wilder current source of fig. Both of transistor are identical and β>>1 and V_BE1 = 0.7 V. The value of resistance R₁ and R_E to produce I_ref  = 1 mA and I_o = 12 μA is (V_t = 0.026)