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A sinusoidal emf is connected to a parallel plate capacitor. The magnetic field between the plates

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Important Questions on Electromagnetic Waves

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Gamma Question Bank for Engineering Physics>Chapter 22 - Electromagnetic Waves>Assignment Set-2>Q 19
Which of the following equations can be used, along with a symmetry argument, to calculate the magnetic field of a long straight wire carrying current?
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Gamma Question Bank for Engineering Physics>Chapter 22 - Electromagnetic Waves>Assignment Set-2>Q 20
Which of the following equations can be used to show that magnetic field lines form closed loops?
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Gamma Question Bank for Engineering Physics>Chapter 22 - Electromagnetic Waves>Assignment Set-2>Q 21
If the amplitude of the electric field in a plane electromagnetic wave is 100 V m-1 then the amplitude of the magnetic field is
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Gamma Question Bank for Engineering Physics>Chapter 22 - Electromagnetic Waves>Assignment Set-2>Q 22
For an electromagnetic wave the direction of the vector E→×B→ gives
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Gamma Question Bank for Engineering Physics>Chapter 22 - Electromagnetic Waves>Assignment Set-2>Q 23
The displacement current flows in a dielectric of a capacitor when the potential difference across its plates.
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Gamma Question Bank for Engineering Physics>Chapter 22 - Electromagnetic Waves>Assignment Set-2>Q 24
A plane-polarized electromagnetic wave of frequency 6×108 Hz is propagating through a region of space. Electric field is along positive z-direction and magnetic field is along positive y-direction at some instant. The peak value of electric field is 3milli-volt m-1.
The direction of propagation of wave is
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Gamma Question Bank for Engineering Physics>Chapter 22 - Electromagnetic Waves>Assignment Set-2>Q 25
A plane-polarized electromagnetic wave of frequency 6×108 Hz is propagating through a region of space. Electric field is along positive z-direction and magnetic field is along positive y-direction at some instant. The peak value of electric field is 3milli-volt m-1.
The electromagnetic wave could be represented by
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Gamma Question Bank for Engineering Physics>Chapter 22 - Electromagnetic Waves>Assignment Set-2>Q 26
A plane-polarized electromagnetic wave of frequency 6×108 Hz is propagating through a region of space. Electric field is along positive z-direction and magnetic field is along positive y-direction at some instant. The peak value of electric field is 3milli-volt m-1. The average energy density in the electromagnetic wave is