71. In a lead-acid cell, lead is called as
72. The common impurity in the electrolyte of lead-acid battery is
73. The substances which combine together to store electrical energy during the charge are called ______ materials
74. If a lead-acid cell is discharged below 1.8 V the following will happen.
75. Sulphated cells are indicated by
76. Which of the following is incorrect?
77. Weston standard cell at 20°C has voltage of ____ volts.
78. In constant voltage charging method, the charging current from discharged to fully charged condition
79. In constant-current charging method, the supply voltage from discharged to fully charged condition
80. A battery of 6 cells will show a drop of _____ volts from fully charged state to fully discharged state.
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