NEET UG PHYSICS MCQ: ELECTROMAGNETIC WAVES

1 Hard

1 of 1

Application +4 | -1

A parallel plate capacitor of plate separation 2 mm is connected in on electric circuit having source voltage 400 volts. It the plate area is

60\,c{m^2}

, then the value of displacement current for

{10^{ - 6}}

sec. will be

View answer and explanation

Correct option: B

1.062 \times {10^{ - 2}}\mathrm{ amp}

Option C is correct because

k/\omega

represents the inverse of the wave's phase velocity, which equals

1/c

in vacuum, and thus is independent of wavelength.

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{E_X}

{E_R}

{E_M}

60\,\,\frac{V}{m}

{E_1} = {E_{01}}\hat x\cos \left[ {2\pi v\left( {\frac{z}{c} - t} \right)} \right]

{E_2} = {E_{02}}\hat x\cos \left[ {k\left( {2z - ct} \right)} \right]

{\varepsilon _{{r_1}}}

{\varepsilon _{{r_2}}}

E = 50\sin \,(500x - 10 \times {10^{10}}t)\,v/m.

c

\mathrm{\varepsilon }

\mathrm{\mu }

\sqrt {\frac{\mathrm{\mu }}{\mathrm{\varepsilon }}}