Electromagnetics [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 10 - 13 of 96

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Question 10

Electromagnetics
Wave Equation

Question

Match List-Ⅰ List-Ⅱ▾

Match the following:

List-Ⅰ (Column-I)List-Ⅱ (Column-I)
(A)

Hybrid Mode

(i)

No electric field in the direction of propagation

(B)

TE Mode

(ii)

No electric, no magnetic field in the direction of propagation

(C)

TM Mode

(iii)

No magnetic field in the direction of propagation

(D)

TEM Mode

(iv)

Both electric and magnetic field present in the direction of propagation

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (ii)
  • (iv)
  • (i)

b.

  • (iv)
  • (i)
  • (iii)
  • (ii)

c.

  • (iv)
  • (i)
  • (ii)
  • (iii)

d.

  • (iv)
  • (iii)
  • (ii)
  • (i)

Question 11

Electromagnetics
Impedance Matching

Appeared in Year: 2018 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the two lists and choose the correct answer from the code given below: (December)

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)

SSB

(i)

Phase discrimination

(B)

DSB

(ii)

Chopper type

(C)

AM-modulator

(iii)

Phase cancellation method

(D)

VSB

(iv)

Balanced modulator

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (i)
  • (iv)
  • (iii)
  • (ii)

b.

  • (ii)
  • (iv)
  • (i)
  • (iii)

c.

  • (iii)
  • (i)
  • (iv)
  • (ii)

d.

  • (ii)
  • (i)
  • (iii)
  • (iv)

Question 12

Electromagnetics
Wave Equation

Appeared in Year: 2018 (UGC-NET)

Question

MCQ▾

For equation of continuity which of the following is true (for steady state currents) ? (December)

Choices

Choice (4)Response

a.

b.

c.

d.

Question 13

Electromagnetics
Wave Equation

Appeared in Year: 2018 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

A short linear conductor is often called a short dipole. (December)

Reason(Ꭱ)

In a short dipole, the length is much lesser than the wavelength and the diameter of the dipole is also much lesser than the length.

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

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