☰ DC Basics and Networks (Electrical Engineering) - MCQs

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Q7.

The flow of electric current ina conductor is due to flow of

  • A. electrons
  • B. protons
  • C. electrons and ions
  • D. charged particles
    ✍ Discuss    
Q8.

A floating battery is one

  • A. which is charged and discharged simultaneously
  • B. in which battery voltage is equal to charge voltage
  • C. which supplies current intermittently and also during idle period get charged
  • D. none of the above
    ✍ Discuss    
Q9.

Nickel cadmium accumulators in comparison to nickel iron accumulators have the advantages of

  • A. being light in weight and cheaper in cost
  • B. low internal resistance and longer life
  • C. higher EMF and higher efficiency
  • D. all of the above
    ✍ Discuss    
Q10.

During charging and discharging of an Edison cell

  • A. Electrolyte does not take part in chemical reaction
  • B. EMF remains the same
  • C. Corrosive fumes are produced
  • D. Nickel hydroxide remains unsplit
    ✍ Discuss    
Q11.

The capacity of a lead acid battery is adversely affected by increase in

  • A. discharge rate
  • B. charge rate
  • C. temperature
  • D. specific gravity of the electrolyte
    ✍ Discuss    
Q12.

The capacity of a lead acid battery does not depend upon

  • A. charge rate
  • B. discharge rate
  • C. temperature
  • D. density of electrolyte
    ✍ Discuss    
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