The number of comparators required for implementing an 8-bit flash analog-to-digital converter is
Q. The number of comparators required for implementing an 8-bit flash analog-to-digital converter is (A) 8 (B) 128 (C) 255 (D) 256 Ans: 255
gate questions
The representation of the decimal number (27.625)10 in base-2 number system is
Q. The representation of the decimal number (27.625)10 in base-2 number system is (A) 11011.110 (B) 11101.101 (C) 11011.101 (D) 10111.110 Ans: 11011.101
The representation of the decimal number (27.625)10 in base-2 number system is Read More »
For the 3-bit binary counter shown in the figure, the output increments at every positive
Q. For the 3-bit binary counter shown in the figure, the output increments at every positive transition in the clock (CLK). Assume ideal diodes and the starting state of the counter as 000. If output high is 1 V and output low is 0 V, the current I (in mA) flowing through the 50 Ω
The diodes given in the circuit are ideal. At t = 60 ms, Vpq (in Volts) is
Q. The diodes given in the circuit are ideal. At t = 60 ms, Vpq (in Volts) is____ Ans: 200
The diodes given in the circuit are ideal. At t = 60 ms, Vpq (in Volts) is Read More »
In the given circuit, assume that the opamp is ideal and the transistor has a b of 20
Q. In the given circuit, assume that the opamp is ideal and the transistor has a b of 20. The current Io (in mA) flowing through the load ZL is _ . Ans: 300
In the given circuit, assume that the opamp is ideal and the transistor has a b of 20 Read More »
An ideal square wave with period of 20 ms shown in the figure, is passed through an ideal low
Q. An ideal square wave with period of 20 ms shown in the figure, is passed through an ideal low pass filter with cut-off frequency 120 Hz. Which of the following is an accurate description of the output? A. Output is zero. B. Output consists of both 50 Hz and 100 Hz frequency components. C.
Two periodic signals 𝑥(𝑡) and 𝑦(𝑡) have the same fundamental period of 3 seconds
Q. Two periodic signals 𝑥(𝑡) and 𝑦(𝑡) have the same fundamental period of 3 seconds. Consider the signal 𝑧(𝑡) = 𝑥(−𝑡) + 𝑦(2𝑡 + 1). The fundamental period of 𝑧(𝑡) in seconds is (A) 1 (B) 1.5 (C) 2 (D) 3 Ans: 3 Sol:
Two periodic signals 𝑥(𝑡) and 𝑦(𝑡) have the same fundamental period of 3 seconds Read More »
A coil having an impedance of (10 + j100) Ω is connected in parallel to a variable capacitor as
Q. A coil having an impedance of (10 + j100) Ω is connected in parallel to a variable capacitor as shown in figure. Keeping the excitation frequency unchanged, the value of the capacitor is changed so that parallel resonance occurs. The impedance across terminals p-q at resonance (in Ω) is Ans: 1009 – 1011
The Thevenin equivalent circuit representation across terminals p-q of the circuit shown in the figure is a
Q. The Thevenin equivalent circuit representation across terminals p-q of the circuit shown in the figure is a (A) 1 V source in series with 150 kΩ (B) 1 V source in parallel with 100 kΩ (C) 2 V source in series with 150 kΩ (D) 2 V source in parallel with 200 kΩ Ans:
A series R-C circuit is excited by a 1Ð0 V sinusoidal ac voltage source
Q. A series R-C circuit is excited by a 1Ð0 V sinusoidal ac voltage source. The locus diagram of the phasor current 𝐼= (x + jy) A, when C is varied, while keeping R fixed, is Ans: Option 1
A series R-C circuit is excited by a 1Ð0 V sinusoidal ac voltage source Read More »