358963 Sea water at frequency \(v=4 \times 10^{8} {~Hz}\) has permittivity \(\varepsilon \approx 80\,{\varepsilon _0},\) permeability \(\mu \approx \mu_{0}\) and resistivity \(\rho=0.25\, \Omega-{m}\). Imagine a parallel plate capacitor immersed in sea water and driven by an alternating voltage source \({V}({t})={V}_{0} \sin (2 \,\pi {vt}\) ). What is the ratio of amplitude of the conduction current density to the displacement current density?

358964 Beyond which frequency, the ionosphere bends any incident electromagnetic radiation but do not reflect it back towards the earth?

358965 Assertion :
Sound waves require a material medium for propagation.
Reason :
Sound waves are not electromagnetic waves.

358966 Which of the following Maxwell's equation is valid for time varying conditions but not valid for static conditions?

358967 Assertion :
\(X\)-ray astronomy is possible only from satellites orbiting the earth.
Reason :
Efficiency of \(X\)-ray telescope is large as compared to terre-strail telescope.

358963 Sea water at frequency \(v=4 \times 10^{8} {~Hz}\) has permittivity \(\varepsilon \approx 80\,{\varepsilon _0},\) permeability \(\mu \approx \mu_{0}\) and resistivity \(\rho=0.25\, \Omega-{m}\). Imagine a parallel plate capacitor immersed in sea water and driven by an alternating voltage source \({V}({t})={V}_{0} \sin (2 \,\pi {vt}\) ). What is the ratio of amplitude of the conduction current density to the displacement current density?

358964 Beyond which frequency, the ionosphere bends any incident electromagnetic radiation but do not reflect it back towards the earth?

358965 Assertion :
Sound waves require a material medium for propagation.
Reason :
Sound waves are not electromagnetic waves.

358966 Which of the following Maxwell's equation is valid for time varying conditions but not valid for static conditions?

358967 Assertion :
\(X\)-ray astronomy is possible only from satellites orbiting the earth.
Reason :
Efficiency of \(X\)-ray telescope is large as compared to terre-strail telescope.

358963 Sea water at frequency \(v=4 \times 10^{8} {~Hz}\) has permittivity \(\varepsilon \approx 80\,{\varepsilon _0},\) permeability \(\mu \approx \mu_{0}\) and resistivity \(\rho=0.25\, \Omega-{m}\). Imagine a parallel plate capacitor immersed in sea water and driven by an alternating voltage source \({V}({t})={V}_{0} \sin (2 \,\pi {vt}\) ). What is the ratio of amplitude of the conduction current density to the displacement current density?

358964 Beyond which frequency, the ionosphere bends any incident electromagnetic radiation but do not reflect it back towards the earth?

358965 Assertion :
Sound waves require a material medium for propagation.
Reason :
Sound waves are not electromagnetic waves.

358966 Which of the following Maxwell's equation is valid for time varying conditions but not valid for static conditions?

358967 Assertion :
\(X\)-ray astronomy is possible only from satellites orbiting the earth.
Reason :
Efficiency of \(X\)-ray telescope is large as compared to terre-strail telescope.

358963 Sea water at frequency \(v=4 \times 10^{8} {~Hz}\) has permittivity \(\varepsilon \approx 80\,{\varepsilon _0},\) permeability \(\mu \approx \mu_{0}\) and resistivity \(\rho=0.25\, \Omega-{m}\). Imagine a parallel plate capacitor immersed in sea water and driven by an alternating voltage source \({V}({t})={V}_{0} \sin (2 \,\pi {vt}\) ). What is the ratio of amplitude of the conduction current density to the displacement current density?

358964 Beyond which frequency, the ionosphere bends any incident electromagnetic radiation but do not reflect it back towards the earth?

358965 Assertion :
Sound waves require a material medium for propagation.
Reason :
Sound waves are not electromagnetic waves.

358966 Which of the following Maxwell's equation is valid for time varying conditions but not valid for static conditions?

358967 Assertion :
\(X\)-ray astronomy is possible only from satellites orbiting the earth.
Reason :
Efficiency of \(X\)-ray telescope is large as compared to terre-strail telescope.

358963 Sea water at frequency \(v=4 \times 10^{8} {~Hz}\) has permittivity \(\varepsilon \approx 80\,{\varepsilon _0},\) permeability \(\mu \approx \mu_{0}\) and resistivity \(\rho=0.25\, \Omega-{m}\). Imagine a parallel plate capacitor immersed in sea water and driven by an alternating voltage source \({V}({t})={V}_{0} \sin (2 \,\pi {vt}\) ). What is the ratio of amplitude of the conduction current density to the displacement current density?

358964 Beyond which frequency, the ionosphere bends any incident electromagnetic radiation but do not reflect it back towards the earth?

358965 Assertion :
Sound waves require a material medium for propagation.
Reason :
Sound waves are not electromagnetic waves.

358966 Which of the following Maxwell's equation is valid for time varying conditions but not valid for static conditions?

358967 Assertion :
\(X\)-ray astronomy is possible only from satellites orbiting the earth.
Reason :
Efficiency of \(X\)-ray telescope is large as compared to terre-strail telescope.