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Doctors Medicines MCQs Q&A

  1. i), ii)
  2. i), iii)
  3. i), ii), iii)
  4. i), ii), iv)
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1 Answers

Option 1 : i), ii)

Darlington Pair: CC – CC

  • A Darlington pair is a two-transistor circuit with the emitter of one transistor is connected to the base of other transistors, while both collector terminals are connected to the common terminal
  • It has high current gain β; (equal to the product of current gain of individual transistors) and is useful in applications where current amplification or switching is required.
  • It also has high input impedance and low output impedance.
  • The current gain of a Darlington pair in common emitter configuration is approximate β2

 

Symbolic diagram of the Darlington pair is shown below

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Related Questions

The question given below consists of a statement, followed by three arguments numbered I, II and III. You have to decide which of the arguments is/are ‘strong’ arguments and which is/are ‘weak’ arguments and accordingly choose your answer from the alternatives given below each question. Statement: Automatic teller machines (ATMs) remain a mainstay of India’s financial inclusion drive and need the central bank’s support to stay relevant amid the government’s push for digital payments. Digital payments haven’t kept pace with the requirement for financial services in far-flung areas and a lack of ATMs there could prove disastrous for the economy.Which among the following arguments support the above statement in the best possible manner Arguments: I. There is still strong demand for cash and if banks do not invest in the ATM infrastructure, especially in rural areas, people might opt to hoard cash instead. II. To maintain a balance between the two modes of payment, there is a need to open up regulatory sandboxes for ATMs to allow manufacturers to collaborate with financial-technology startups. III. Demonetisation pulled out over 85% of the cash in circulation, forcing people to embrace digital payments. Since then, cash in circulation has reverted to its pre-demonetisation days but digital payments have come to stay. ?
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