If biasing is not done in an amplifier circuit, it results in ___________

Transistor biasing is done to keep ___________ in the circuit

A

Proper direct current

B

Proper alternating current

C

The base current small

D

Collector current small

Consider the biasing circuit shown. The β for the circuit is large. R3 = 1kΩ, R4 = 2kΩ. The stability factor varies between 10 and 11. Find the maximum and minimum values of R2.

A

Minimum = 16.36kΩ, Maximum = 20kΩ

B

Minimum = 16.36kΩ, Maximum = 18kΩ

C

Minimum = 10 kΩ, Maximum = 20kΩ

D

Minimum = 6 kΩ, Maximum = 10kΩ

Which of the following statements is most correct to explain role of biasing circuit in the implementation of a transistor circuit?

A

It is used provide proper voltage to every component in the circuit

B

It is used to ensure maximum power is obtained out of the circuit

C

It is used to provide the quiescent collector current

D

It is used to provide proper and stable functional environment to all quiescent point parameters

In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident? 1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter. 2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters. 3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit. Select the correct answer using the code given below :

A

1 and 2 only

B

2 and 3 only

C

1 and 3 only

D

1, 2 and 3

Determine $${I_{\text{N}}}$$ for the circuit consisting of VS, R1, R2 and R3 shown in the given circuit.
Circuit Theorems and Conversions mcq question image

A

676 mA

B

245 mA

C

431 mA

D

75 mA

For the given circuit, find V_TH for the circuit external to RL.
Circuit Theorems In Ac Analysis mcq question image

A

4.69 ∠51.3° V

B

4.69 ∠38.7° V

C

469 ∠38.7° mV

D

6 ∠0° V

Find the Norton circuit, that is, I_IN and R_N, for the circuit given below.
Circuit Theorems and Conversions mcq question image

A

478 mA, 12.8 Ω

B

750 mA, 12.8 Ω

C

478 mA, 6.8 Ω

D

750 mA, 6.8 Ω

Referring to the given circuit, find Z_TH for the part of the circuit that is external to RL.
Circuit Theorems In Ac Analysis mcq question image

A

129 ∠21.4° Ω

B

43.7 ∠68.6° Ω

C

43.7 ∠21.4° Ω

D

12.9 ∠68.6° Ω

For the circuit shown, determine Z_TH for the portion of the circuit external to RL.
Circuit Theorems In Ac Analysis mcq question image

A

66.7 ∠-33.7° kΩ

B

6.67 ∠-333.7° kΩ

C

14.4 ∠-56.3° kΩ

D

1.44 ∠-33.7° kΩ

In the design of a biasing circuit, the value of collector load RC is determined by ___________

A

VCE consideration

B

VBE consideration

C

IB consideration

D

None of the above

If biasing is not done in an amplifier circuit, it results in ___________

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