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A parallel palte capacitor of capacitance 20 \mu F is being charged by a voltage source whose potential is changing at the rate of 3 V/s . The conduction  current through the connecting wires , and the dispalcement  current through the plates of the capacitor , would be  resectively : 

 

  • Option 1)

    zero, 60 \mu A

  • Option 2)

    60 \mu A , 60 \mu A

  • Option 3)

    60 \mu A , zero

  • Option 4)

    zero , zero 

Option 1)zero, Option 2)Option 3)Option 4)zero , zero 

Which color of the light has the longest wavelength ? 

 

  • Option 1)

    red 

  • Option 2)

    blue 

  • Option 3)

    green 

  • Option 4)

    violet 

 
Increasing order for wavelength= VIBGYOR Red color have high wavelength . This can be  easily detected by human eye .    Option 1) red  Option 2) blue  Option 3) green  Option 4) violet 
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Out of the following options which one can be used to produce a propagating electromagnetic wave?

  • Option 1)

    A charge moving at constant velocity

  • Option 2)

    A stationary charge

  • Option 3)

    A chargeless particle

  • Option 4)

    An accelerating charge

 
  Total radiant Flux (Power) -   q = Charge  = Acceleration of particle c = Speed of light in vacuum - wherein The accelerated charge particle produce EM wave. P is total radiant flux emitted by charge at any instant.    Electromagnetic wave can be produced by an accelerating charge. Option 1) A charge moving at constant velocity This option is incorrect. Option 2) A stationary charge This...
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