A radio receiver antenna that is 2 ,m long is | vedclass

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Question

(a)$I = \frac{1}{2}{\varepsilon _0}CE_0^2$
==> ${E_0} = \sqrt {\frac{{2I}}{{{\varepsilon _0}C}}} = \sqrt {\frac{{2 	imes 5 	imes {{10}^{ - 16}}}

Vedclass · Accepted Answer

$1.23 \mu \,V$

Vedclass · Answer

(a)$I = \frac{1}{2}{\varepsilon _0}CE_0^2$
==> ${E_0} = \sqrt {\frac{{2I}}{{{\varepsilon _0}C}}} = \sqrt {\frac{{2 	imes 5 	imes {{10}^{ - 16}}}}{{8.85}}} = 0.61 	imes {10^{ - 6}}\frac{V}{m}$
Also ${E_0} = \frac{{{V_0}}}{d}$ ==> ${V_0} = {E_0}d = 0.61 	imes {10^{ - 6}} 	imes 2 = 1.23\mu V$

A radio receiver antenna that is $2 \,m$ long is oriented along the direction of the electromagnetic wave and receives a signal of intensity $5 \times {10^{ - 16}}W/{m^2}$. The maximum instantaneous potential difference across the two ends of the antenna is

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