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The self inductance of a coil is L . Keeping the length and area same, the number of turns in the coil is increased to four times. The self inductance of the coil will now beA. `(1)/(4)L`B. LC. 4 LD. 16 L |
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Answer» Correct Answer - D Self-inductance of coil is directly proportional to squre of number of turns in the coil, i.e., `L propN^(2)` `therefore" "(L_(1))/(L_(2))=(N_(1)^(2))/(N_(2)^(2))` `therefore" "(L)/(L_(2))=(N^(2))/((4N)^(2))` `therefore" "L_(2)=16L` |
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