Q. Radiation resistance of a small dipole current element of length l at a frequency of 3 GHz is 3 ohms. If the length is changed by 1%, then the percentage change in the radiation resistance, rounded off to two decimal places, is _______________%. Ans: 1.99 – 2.01 Solution:
Cabinet Secretary Rajiv Gauba gets one-year extension: The Central government has officially given Cabinet Secretary Rajiv Gauba a one-year extension, making him India’s longest-serving cabinet secretary. The decision was made by the Appointments Committee of the Cabinet (ACC). This extension comes as a result of the relaxation of important rules, allowing him to continue in
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World Archery Championships 2023: The Indian women’s compound archery team made history when they won gold at the World Archery Championships in Berlin, Germany. This victory marked India’s first-ever gold at the archery world championships in any category. It was India’s first-ever gold at the archery world championships in any category. Daily Current Affairs Quiz:
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Alex Hales from England announces retirement from International Cricket: Alex Hales, 34, has declared his retirement from international cricket with immediate effect. He ends his England career as a T20 World Cup winner, having played his final game in November last year in a five-wicket win against Pakistan at the MCG. Hales, aged 34, was
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Q. The baseband signal 𝑚(𝑡) shown in the figure is phase-modulated to generate the PM signal 𝜑(𝑡) = cos(2𝜋𝑓𝑐𝑡 + 𝑘 𝑚(𝑡)). The time 𝑡 on the x-axis in the figure is in milliseconds. If the carrier frequency is 𝑓𝑐 = 50 kHz and 𝑘 = 10𝜋, then the ratio of the minimum instantaneous frequency
Durand Cup 2023 Schedule: Date, Teams, Fixtures and Points Table: On August 3, the 132nd edition of Asia’s oldest football tournament, the Durand Cup 2023, began. The event this year is unique in that it features 24 clubs from the Indian Super League, I-League, and the Armed Forces. This number of teams is an increase
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![If 𝑋 and 𝑌 are random variables such that 𝐸[2𝑋 + 𝑌] = 0 and 𝐸[𝑋 + 2𝑌] = 33, then 𝐸[𝑋] + 𝐸[𝑌]](https://www.gkseries.com/blog/wp-content/uploads/2023/08/If-𝑋-and-𝑌-are-random-variables-such-that-𝐸2𝑋-𝑌-0-and-𝐸𝑋-2𝑌-33-then-𝐸𝑋-𝐸𝑌--1024x536.jpg)
Q. If 𝑋 and 𝑌 are random variables such that 𝐸[2𝑋 + 𝑌] = 0 and 𝐸[𝑋 + 2𝑌] = 33, then 𝐸[𝑋] + 𝐸[𝑌] = . Ans:11 Solution: E[x + y] = E[x] + E[y] E [Ax] = A E[x] Where E [x] represents the expected or mean value of the random variable ‘x’
Q. In the circuit shown, A and B are the inputs and F is the output. What is the functionality of the circuit? (A) Latch (B) XNOR (C) SRAM Cell (D) XOR Ans: XNOR Solution: Case A: A = 0, B = 0 NMOS 1 → OFF NMOS 2 → OFF PMOS 3 → ON
Q. In the circuit shown, what are the values of F for EN = 0 and EN = 1, respectively? (A) 0 and D (B) Hi-Z and D (C) 0 and 1 (D) Hi-Z and D̅ Ans: Hi-Z and D̅
In the circuit shown, what are the values of F for EN = 0 and EN = 1, respectively? Read More »
Q. A standard CMOS inverter is designed with equal rise and fall times (β𝑛 = βp). If the width of the pMOS transistor in the inverter is increased, what would be the effect on the LOW noise margin (𝑁𝑀𝐿) and the HIGH noise margin 𝑁𝑀𝐻? A. 𝑁𝑀𝐿 increases and 𝑁𝑀𝐻 decreases. B. 𝑁𝑀𝐿 decreases and
