मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

A Capacitor is Connected to an Alternating-current Source. is There a Magnetic Field Between the Plates? - Physics

Advertisements
Advertisements

प्रश्न

A capacitor is connected to an alternating-current source. Is there a magnetic field between the plates?

टीपा लिहा

उत्तर

When an alternating-current source is connected to a capacitor, the electric field between the plates of the capacitor keeps on changing with the applied voltage. Due to the changing electric field, a magnetic field exists in between the plates of the capacitor.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 18: Electromagnetic Waves - Short Answers [पृष्ठ ३३८]

APPEARS IN

एचसी वर्मा Concepts of Physics Vol. 2 [English] Class 11 and 12
पाठ 18 Electromagnetic Waves
Short Answers | Q 5 | पृष्ठ ३३८

संबंधित प्रश्‍न

How are electromagnetic waves produced? 


Draw a schematic sketch of the electromagnetic waves propagating along the + x-axis. Indicate the directions of the electric and magnetic fields


Suppose that the electric field part of an electromagnetic wave in vacuum is 

`vec"E" = {(3.1"N"/"C") cos[(1.8 ("rad")/"m")"y" + (5.4 xx 10^8 ("rad")/"s")"t"]}hat"i"`

(a) What is the direction of propagation?

(b) What is the wavelength λ?

(c) What is the frequency v?

(d) What is the amplitude of the magnetic field part of the wave?

(e) Write an expression for the magnetic field part of the wave.


How is the speed of em-waves in vacuum determined by the electric and magnetic field?


How does oscillating charge produce electromagnetic waves?


An electromagnetic wave going through vacuum is described by
E = E0 sin (kx − ωt); B = B0 sin (kx − ωt).
Which of the following equations is true?


Which of the following have zero average value in a plane electromagnetic wave?
(a) Electric field
(b) Magnetic field
(c) Electric energy
(d) Magnetic energy


The energy levels of an atom of a certain element are shown in the given figure. Which one of the transitions A, B, C, D or E will result in the emission of photons of electromagnetic radiation of wavelength 618.75 nm? Support your answer with mathematical calculations.


Which of the following electromagnetic radiations is used for viewing objects through fog ______.


The electric and magnetic fields, associated with an electromagnetic wave, propagating along negative X-axis can be represented by ______.


Write down the integral form of modified Ampere’s circuital law.


Write down Maxwell equations in integral form.


Explain the importance of Maxwell’s correction.


The electric field of a plane electromagnetic wave travelling in +ve z-direction is described by ______.


Plane electromagnetic waves are ______.


Dimensions of 1/(µOE0) is


An accelerate electron would produce.


Show that the radiation pressure exerted by an EM wave of intensity I on a surface kept in vacuum is I/c.


A plane electromagnetic wave travels in free space along the x-direction. The electric field component of the wave at a particular point of space and time is E = 6 Vm-1 along the y-direction. Its corresponding magnetic field component, B would be ______.


The ratio of the magnitudes of the electric field and magnetic field of a plane electromagnetic wave is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×