91. The inductance and energy stored in joules in the magnetic field of the solenoid having length 30 cm and diameter 3 cm and wound with 1000 turns of wire when carrying a current of 10 Amp.
92. Magnetic flux density is given by:
93. Tangential component of the electric field on perfect conductor will be
94. Lorentz's force law for a point charge q is given by:
95. Find, which statement is ""TRUE' for A vector field F
I. Solenoidal and irrotational if ∇ ⋅ F = 0 and ∇ × F = 0
II. Solenoidal but not irrotational, if ∇ ⋅ F ≠ 0 and ∇ × F = 0
III. Irrotational but not solenoidal, if ∇ × F ≠ 0 and ∇ ⋅ F ≠ 0
IV. Neither solenoidal nor irrotational, if ∇ ⋅ F ≠ 0 and ∇ × F ≠ 0
I. Solenoidal and irrotational if ∇ ⋅ F = 0 and ∇ × F = 0
II. Solenoidal but not irrotational, if ∇ ⋅ F ≠ 0 and ∇ × F = 0
III. Irrotational but not solenoidal, if ∇ × F ≠ 0 and ∇ ⋅ F ≠ 0
IV. Neither solenoidal nor irrotational, if ∇ ⋅ F ≠ 0 and ∇ × F ≠ 0
96. If the electric field strength of a plane wave is 12 V/m. What will be the strength of magnetic field in free space-
97. According to Ampere's circuital Law the line integral of H about any closed path is exactly . . . . . . . . to the direct current enclosed by that path.
98. Consider an interface between two dielectric materials, one with εr = 2 while the other has εr = 5. If the tangential component of electric field on one side of the interface has a magnitude of 10 V.m-1. What is the magnitude of the tangential component of electric field on the other side?
99. At a frequency of 1 GHz, the equivalent inductance between the terminals of a $$\frac{\lambda }{8}$$ (λ represents wavelength) short-circuited lossless 50 Ω line is
100. A plane electromagnetic wave travelling in a perfect dielectric medium of characteristic impedance η1 is incident normally on its boundary with another perfect dielectric medium of characteristic impedance η2. The electric and magnetic field strengths of the incident wave are denoted by E1 and H1 respectively whereas Er
and Hr denote these quantities for the reflected wave, and Et and Ht for the transmitted wave.
Which of the following relations are correct?
1. Ei = η1Hi
2. Er = η1Hr
3. Et = -η2Ht
Select the correct answer using the options given below:
Which of the following relations are correct?
1. Ei = η1Hi
2. Er = η1Hr
3. Et = -η2Ht
Select the correct answer using the options given below:
Read More Section(Electromagnetic Field Theory)
Each Section contains maximum 100 MCQs question on Electromagnetic Field Theory. To get more questions visit other sections.