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Electromagnetic Field Theory MCQ Questions & Answers | ECE

Learn Electromagnetic Field Theory MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Electromagnetic Field Theory MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-6 section-1

Each section contains 100 MCQs on Electromagnetic Field Theory .
51
High range resolution is obtained with
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Answer & Solution
Answer: Option D
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52
The input impedance of a short circuited lossless transmission line quarter wave long is
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Answer: Option C
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53
A loss-less line length x such that $$\beta {\text{x}} = \frac{\pi }{2}$$   is connected in between a line of characteristic impedance of 100 Ω and a load impedance of 400 Ω. The line so connected should have a characteristic impedance of
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Answer: Option B
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54
Inside a hollow conducting sphere
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Answer: Option A
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55
If the maximum electron density for E layer in ionosphere is 9 × 106 electrons/cm3, then its critical frequency is
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Answer: Option C
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56
For a perfectly matched line the reflection coefficient has value of:
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Answer: Option A
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57
The electric field inside a metal is always . . . . . . . .
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Answer: Option B
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58
Impedance inversion may be obtained with-
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Answer: Option C
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59
Which of the following is correct?
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Answer: Option A
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60
Three point charges, Q1 = 30 nC, Q2 = -150 nC, and Q3 = 70 nC, are enclosed by surface S. What net flux crosses S?
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Answer: Option D
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