ISRO 2023 Quiz 38 Revision

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Question 1

What is the ratio of peak inverse voltage across the diode in center tapped full wave rectifier and the bridge rectifier?

• A2
• B0.5
• C0.25
• D1

Question 2

A communication link is to be set up between two stations 100 km apart using antennae to transmit 1 kW power. The operating frequency is 100 MHz and the directivity of the two antennae is 1.64. The maximum received power would be

• A
• B
• C
• D

Question 3

Find i(0⁺) and i(∞ ) in the given circuit.

• AZero, Zero
• BZero, 2.5 Amp
• C1 A, 1.66 Amp
• DZero, 5 Amp

Question 4

The polar plot of the transfer function is given below in figure

The gain margin of the system is

• A1.61 dB
• B3.53 dB
• C6.59 dB
• D7.13 dB

Question 5

The numbers A= 00010110 and B= 00110011 are in 2’s complement form, then addition of above two numbers is

• A01001001
• B00111001
• C00110111
• D10001001

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