8.Electromagnetic waves
easy

વિદ્યુતચુંબકીય તરંગોમાં ઊર્જાનો સંગ્રહ શેમાં થાય?

A

વિદ્યુતક્ષેત્રમા

B

ચુંબકીયક્ષેત્રમાં

C

$(a) $ અને $(b)$

D

એકપણ નહિ.

Solution

We know that,

$E=\frac{F}{q} \text { and } F=Q \cdot V \cdot B$

$\Rightarrow E=\frac{1}{\sqrt{\mu_0 \varepsilon_0}} \times B-(1)\left(\text { as } V=\frac{1}{\sqrt{\mu_0 \varepsilon_0}}\right)$

Also, $E=\varepsilon_0 E^2=\frac{1}{2} \varepsilon_0 E^2+\frac{1}{2} \varepsilon_0 \times \frac{B^2}{\varepsilon_0 \mu}$.

$\Rightarrow E=\frac{1}{2} \varepsilon_0 E^2+\frac{1}{2} B^2 / \mu_0$

$\therefore$ It depends on both Electric and Magnetic field.

Standard 12
Physics

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