1
GATE ECE 2015 Set 3
MCQ (Single Correct Answer)
+2
-0.6
An SR latch is implemented using TTL gates as shown in the figure. The set and reset pulse inputs are provided using the push-button switches. It is observed that the circuit fails to work as desired. The SR latch can be made functional by changing GATE ECE 2015 Set 3 Digital Circuits - Sequential Circuits Question 23 English
A
NOR gates to NAND gates
B
inverts to buffers
C
NOR gates to NAND gates and inverters to buffers
D
5 V to ground
2
GATE ECE 2015 Set 3
Numerical
+2
-0
A coaxial capacitor of inner radius 1 mm and outer radius 5 mm has a capacitance per unit length of 172 pF/m. If the ratio of outer radius to inner is doubled, the capacitance per unit length (in pF/m) is _____.
Your input ____
3
GATE ECE 2015 Set 3
MCQ (Single Correct Answer)
+1
-0.3
A coaxial cable is made of two brass conductors. The spacing between the conductors is filled with Teflon $$\left( {{\varepsilon _r} = 2.1,\,\,\tan \,\,\delta = \,0} \right)$$. Which one of the following circuits can represent the lumped element model of a small piece of this cable having length $$\Delta \,\,z\,\,?$$
A
GATE ECE 2015 Set 3 Electromagnetics - Transmission Lines Question 37 English Option 1
B
GATE ECE 2015 Set 3 Electromagnetics - Transmission Lines Question 37 English Option 2
C
GATE ECE 2015 Set 3 Electromagnetics - Transmission Lines Question 37 English Option 3
D
GATE ECE 2015 Set 3 Electromagnetics - Transmission Lines Question 37 English Option 4
4
GATE ECE 2015 Set 3
MCQ (Single Correct Answer)
+2
-0.6
Consider the 3 m long lossless air-filled transmission line shown in the figure. It has a characteristic impedance of $$120\pi \,\Omega $$, is terminated by a short circuit, and is excited with a frequency of 37.5 MHz. What is the nature of the input impedance $$({Z_{in}})$$? GATE ECE 2015 Set 3 Electromagnetics - Transmission Lines Question 10 English
A
Open
B
Short
C
Inductive
D
Capacitive
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