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| 1. |
In post office box, the graph of galvanometer deflection versus resistance R (pulled out of resistance box) for the ratio 100 : 1 is given as shown (due to unsuitable values of R, galvanometer shows deflection). The two consecutive values of R are shown in the Figure:The value of unknown resistance would be (1) 3.2 Ω (2) 3.24 Ω (3) 3.206 Ω (4) 3.2375 Ω |
| Answer» <p style="text-align:justify"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif"><strong>The Correct Option is (2) 3.24 Ω</strong></span></span></p><p style="text-align:justify"><span style="color:#000000; font-family:Arial, Helvetica, sans-serif"><strong>Explanation:</strong></span></p><p style="text-align:justify"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif">For post office box (Wheatstone bridge), under balanced conditions</span></span></p> | |