100 Ω प्रतिरोध वाले गैल्वेनोमीटर को 0.1 Ω के शंट प्रतिरोध का उपयोग करके (0 - 1 A) रेंज के एमीटर में बदला जाता है। गैल्वेनोमीटर किस धारा के मान के लिए पूर्ण-पैमाना विक्षेप प्रदर्शित करेगा?

Consider two wire arrangements carrying equal current I: Arrangement 1 consists of a semi-circular arc of radius R and two straight infinite wire segments extending along its tangent. Arrangement 2 consists of a semi-circular arc of radius R with two radial straight wires extending to infinity. The ratio of the magnetic field at the center of the semi-circular part in Arrangement 1 to that in Arrangement 2 is:

The magnetic field produced inside a long current-carrying solenoid is: