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Electric Circuits

Electric Circuits
The life of a lead acid battery is expected to be

 2 to 5 years.
 10 to 15 years.
 6 months.
 1 year.

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Electric Circuits
Which of the following is not equivalent to watts?

 Ampere-volts.
 Amperes/volt.
 Ampere2 – Ohm.
 Joules per second.

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Electric Circuits
Magnetic flux has the unit of

  Tesla
 Ampere turn
 Newton
 Weber

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Electric Circuits
For cadium plating electrolyte used is

 cadmium hexa metaphosphate.
 any of above.
 sodium cyanide, cadmium and caustic soda.
 cadmium sulphate and sulphuric acid.

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Electric Circuits
In a lead acid cell PbSO4 formed during

  neither during charging nor discharging.
  both during charging as well as discharging.
  charging only.
  discharging only.

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Electric Circuits
Four resistances 80 Ohm, 50 Ohm, 25 Ohm and R are connected in parallel. Current through 25 Ohm resistance is 4A. Total current of supply is 10A. The value of R will be

 36.36.
 76.66.
 66.66.
 40.25.

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