thoothukudi.nic.inthoothukudi.nic.in/iti/index_htm_files/Electrician Revision Test 12... ·...
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thoothukudi.nic.inthoothukudi.nic.in/iti/index_htm_files/Electrician Revision Test 12... · positive electrode of a cell is ... Residual magnetism due to lack of air gap in ... Faults