Book Store

Download books and chapters from book store.
Currently only available for
CBSE Gujarat Board Haryana Board

Previous Year Papers

Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only available for
Class 10 Class 12

સ્થિતિ વિદ્યુતસ્થિતિમાન અને કૅપેસિટન્સ

R₁ અને R₂ ત્રિજ્યાના બે ગોળાઓને વિદ્યુતભારિત કરીને એકબીજા સાથે તારથી જોડવામાં આવે છે. આથી ગોળાઓ પરના વિદ્યુતક્ષેત્રનો ગુણોત્તર ................. છે.

$fraction numerator bold R subscript bold 2 superscript bold 2 over denominator bold R subscript bold 1 superscript bold 1 end fraction$
$fraction numerator bold R subscript bold 1 superscript bold 2 over denominator bold R subscript bold 2 superscript bold 2 end fraction$
$bold R subscript bold 2 over bold R subscript bold 1$
$bold R subscript bold 1 over bold R subscript bold 2$

એક ધાતુનો નક્કર ગોળો સમાન વિદ્યુત ક્ષેત્રમાં મૂકવામાં આવે છે તો નીચેની આકૃતિમાંથી કઈ ક્ષેત્રરેખા સાચી છે ?

20 cm અને 10 cm ત્રિજ્યાની બે ધાતુની કવચોને વાહક તાર વડે જોડતાં સામાન્ય સ્થિતિમાન કેટલું થાય ? દરેક કવચ પર

bold 150 bold space bold μC

ધન વિદ્યુતભાર છે.

$bold 9 bold space bold cross times bold space bold 10 to the power of bold 6 bold space bold V$
$bold 4 bold. bold 5 bold space bold cross times bold space bold 10 to the power of bold 6 bold space bold V$
$bold 1 bold. bold 8 bold space bold cross times bold 10 to the power of bold 7 bold space bold V$
$bold 13 bold. bold 5 bold space bold cross times bold space bold 10 to the power of bold 6 bold space bold V$

1 cm અને 2 cm ત્રિજ્યાવાળા બે ગોળાઓને અનુક્રમે

bold 10 to the power of bold minus bold 2 end exponent bold space bold C bold space bold અને bold space bold 5 bold space bold cross times bold space bold 10 to the power of bold minus bold 2 end exponent bold space bold C

વિદ્યુતભાર વડે વિદ્યુતભારિત કરેલ છે. જો આ ગોળાઓને તાર વડે જોડવામાં આવે તો નાના ગોળા પરનો વિદ્યુતભાર ગણો.

$bold 3 bold space bold cross times bold space bold 10 to the power of bold minus bold 2 end exponent bold space bold C$
$bold 10 to the power of bold minus bold 2 end exponent bold space bold C$
$bold 4 bold space bold cross times bold space bold 10 to the power of bold minus bold 2 end exponent bold space bold C$
$bold 2 bold space bold cross times bold space bold 10 to the power of bold minus bold 2 end exponent bold space bold C$

bold 2 bold space bold cross times bold space bold 10 to the power of bold minus bold 2 end exponent bold space bold C

Tips: -

વિદ્યુતભારનું વિતરણ ગોળાની ત્રિજ્યાના સમપ્રમાણમાં હોવાથી $bold q bold space bold proportional to bold space bold R$

$bold therefore bold space bold q subscript bold 1 over bold q subscript bold 2 bold space bold equals bold space bold R subscript bold 1 over bold R subscript bold 2 bold space bold જ્યાં bold space bold q subscript bold 1 bold space bold equals bold space bold 10 to the power of bold minus bold 2 end exponent bold space bold C bold space bold અને bold space bold q subscript bold 2 bold space bold equals bold space bold 5 bold space bold cross times bold space bold 10 to the power of bold minus bold 2 end exponent bold space bold C bold હવે bold space fraction numerator bold q subscript bold 1 over denominator bold q subscript bold 1 bold space bold plus bold space bold q subscript bold 2 end fraction bold space bold equals bold space fraction numerator bold R over denominator bold R subscript bold 1 bold space bold plus bold space bold R subscript bold 2 end fraction$

તાર વડે જોડતાં નાના ગોળા પરનો વિદ્યુતભાર

$bold q subscript bold 1 bold space bold equals bold space fraction numerator bold R subscript bold 1 bold space open parentheses bold q subscript bold 1 bold space bold plus bold space bold q subscript bold 2 close parentheses over denominator bold R subscript bold 1 bold space bold plus bold space bold R subscript bold 2 end fraction bold space bold equals bold space fraction numerator bold 10 to the power of bold minus bold 2 end exponent bold space open parentheses bold 10 to the power of bold minus bold 2 end exponent bold space bold plus bold space bold 5 bold space bold cross times bold space bold 10 to the power of bold minus bold 2 end exponent close parentheses over denominator open parentheses bold 10 to the power of bold minus bold 2 end exponent bold space bold plus bold space bold 2 bold space bold cross times bold space bold 10 to the power of bold minus bold 2 end exponent close parentheses end fraction bold q subscript bold 1 bold space bold equals bold space fraction numerator bold 6 bold space bold cross times bold space bold 10 to the power of bold minus bold 2 end exponent over denominator bold 3 end fraction bold space bold equals bold space bold 2 bold space bold cross times bold space bold 10 to the power of bold minus bold 2 end exponent bold space bold C$

હવામાં એકબીજાથી 1 m અંતરે રહેલા બે બિંદુવત્ ઋણ વિદ્યુતભારોના તંત્રની સ્થિતિઊર્જા ............... દરેક વિદ્યુતભારનું મૂલ્ય

bold 2 bold space bold μC

છે.

<pre>uncaught exception: <b>Http Error #404</b><br /><br />in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/HttpImpl.class.php line 61<br />#0 [internal function]: com_wiris_plugin_impl_HttpImpl_0(Object(com_wiris_plugin_impl_HttpImpl), NULL, 'http://www.wiri...', 'Http Error #404') #1 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/php/Boot.class.php(769): call_user_func_array('com_wiris_plugi...', Array) #2 [internal function]: _hx_lambda->execute('Http Error #404') #3 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/haxe/Http.class.php(532): call_user_func_array(Array, Array) #4 [internal function]: haxe_Http_5(true, Object(com_wiris_plugin_impl_HttpImpl), Object(com_wiris_plugin_impl_HttpImpl), Array, Object(haxe_io_BytesOutput), true, 'Http Error #404') #5 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/php/Boot.class.php(769): call_user_func_array('haxe_Http_5', Array) #6 [internal function]: _hx_lambda->execute('Http Error #404') #7 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/HttpImpl.class.php(27): call_user_func_array(Array, Array) #8 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/haxe/Http.class.php(444): com_wiris_plugin_impl_HttpImpl->onError('Http Error #404') #9 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/haxe/Http.class.php(458): haxe_Http->customRequest(true, Object(haxe_io_BytesOutput), NULL, NULL) #10 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/HttpImpl.class.php(40): haxe_Http->request(true) #11 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/TextServiceImpl.class.php(80): com_wiris_plugin_impl_HttpImpl->request(true) #12 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/service.php(19): com_wiris_plugin_impl_TextServiceImpl->service('mathml2accessib...', Array) #13 {main}</pre>

$bold 3 bold. bold 6 bold space bold cross times bold space bold 10 to the power of bold minus bold 2 end exponent bold space bold J$
$bold 3 bold. bold 6 bold space bold J$
$bold 3 bold. bold 6 bold space bold cross times bold space bold 10 to the power of bold minus bold 3 end exponent bold space bold J$
$bold 36 bold space bold J$

Switch

Chapter Chosen

Book Chosen

Subject Chosen

Book Store

Previous Year Papers

સ્થિતિ વિદ્યુતસ્થિતિમાન અને કૅપેસિટન્સ

Switch