GATE ECE 2015 Set 3 | GATE ECE Year Wise Previous Years Questions

GATE ECE 2015 Set 3

MCQ (Single Correct Answer)

-0.3

The directivity of an antenna array can be increased by adding more antenna elements, as a larger number of elements

Improves the radiation efficiency

Increases the effective area of the antenna

Results in a better impedance matching

Allows more power to be transmitted by the antenna

GATE ECE 2015 Set 3

Numerical

-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 ____

GATE ECE 2015 Set 3

MCQ (Single Correct Answer)

-0.6

The electric field profile in the depletion region of a p-n junction in equilibrium is shown in the figure. Which one of the following statements is NOT TRUE? GATE ECE 2015 Set 3 Electronic Devices and VLSI - PN Junction Question 7 English

GATE ECE 2015 Set 3 Electronic Devices and VLSI - PN Junction Question 7 English

The left side of the junction is n-type and the right side is p-type

Both the n-type and p-type depletion regions are uniformly doped

The potential difference across the depletion region is 700 mV

If the p-type region has a doping concentration of 10¹⁵ cm^–3 , then the doping concentration in the n-type region will be 10¹⁶ cm^–3

GATE ECE 2015 Set 3

Numerical

-0

In the circuit shown in the figure, the BJT has a current gain (β) of 50. For an emitter-base voltage V_EB = 600 mV, the emitter-collector voltage V_EC(in Volts) is ______.

Your input ____

PREVIOUS NEXT

GATE ECE Papers

2025