Electrolysis and storage of batteries

[amp_mcq option1=”charged ions” option2=”chemical energy” option3=”electrostatic energy” option4=”electromagnetic energy” correct=”option1″]

Detailed SolutionIn a lead-acid battery the energy is stored in the form of

[amp_mcq option1=”ions” option2=”holes” option3=”electrons” option4=”none of the above” correct=”option1″]

Detailed SolutionThe current flow through electrolyte is due to the movement of

[amp_mcq option1=”colour” option2=”mass” option3=”viscosity” option4=”specific gravity” correct=”option4″]

Detailed Solution_______ of electrolyte indicates the state of charge of the battery

[amp_mcq option1=”solar cells” option2=”dry cells” option3=”nickel-cadmium cells” option4=”lead-acid batteries” correct=”option1″]

Detailed SolutionSatellite power requirement is provided through

[amp_mcq option1=”minimum efficiency” option2=”minimum current capacity” option3=”low internal resistance” option4=”high internal resistance” correct=”option3″]

Detailed SolutionA constant-voltage generator has

[amp_mcq option1=”2%” option2=”4%” option3=”6%” option4=”8%” correct=”option3″]

Detailed SolutionHydrogen evolved during charging produces explosive mixture when it is more than

[amp_mcq option1=”1.8 V” option2=”1.9 V” option3=”2 V” option4=”2.1 V” correct=”option1″]

Detailed SolutionThe lead-acid cell should never be discharged beyond

[amp_mcq option1=”Current” option2=”Efficiency of the circuit” option3=”Power in the load resistance” option4=”Voltage across the load resistance” correct=”option3″]

Detailed SolutionWhen the load resistance equals the generator resistance which of the following will be maximum ?

[amp_mcq option1=”bakelite” option2=”rubber” option3=”nickel plated steel” option4=”aluminium” correct=”option3″]

Detailed SolutionThe body of Edison cell is made of

[amp_mcq option1=”0.8″ option2=”0.9″ option3=”1.0187″ option4=”1.5″ correct=”option3″]

Detailed SolutionWeston standard cell at 20°C has voltage of ____ volts.