1. Electric Charges and Fields
medium

સમબાજુ ત્રિકોણના $A$ બિંદુ પર રહેલાં વિદ્યુતભાર પર $BC$ ને લંબ દિશામાં કેટલું બળ લાગે?

A

${Q^2}/(4\pi {\varepsilon _0}{a^2})$

B

$ - {Q^2}/(4\pi {\varepsilon _0}{a^2})$

C

શૂન્ય

D

${Q^2}/(2\pi {\varepsilon _0}{a^2})$

(AIIMS-2003)

Solution

(c) $|\overrightarrow {{F_B}} |\, = \,\,|\overrightarrow {{F_C}} | = k.\frac{{{Q^2}}}{{{a^2}}}$
Hence force experienced by the charge at A in the direction normal to BC is zero.

Standard 12
Physics

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