Battery

The electrode for a battery must be

• A semi conductor

• An insulator

• A good conductor of electricity

• A bad conductor of electricity

Tags

NGSS.HS-PS2-5

The storage battery generally used in electric power station is

• Nickel-cadmium battery

• Zinc carbon battery

• Lead-acid battery

• None of the above

Batteries are charged by

• Rectifiers

• Engine generator sets

• Motor generator sets

• Any of the above

Tags

NGSS.HS-PS3-3

The emf of the dry cell is about

• 0 V

• 0.5 V

• 1 V

• 1.5 V

Secondary’s cells are

• lead acid cell

• alkaline cell

• both (a) and (b)

• none of these

Tags

NGSS.HS-PS3-3

Which of the following battery is used for aircraft?

• Lead acid battery

• Nickel-iron battery

• Dry cell battery

• Silver oxide battery

Dry cell is the modification of

• Deniell cell

• Leclanche cell

• Lead acid cell

• Edison cell

The efficiency of a lead acid cell varies between

• 25 to 35%

• 40 to 60%

• 70 to 80%

• 90 to 95%

Tags

NGSS.HS-PS3-3

In voltaic cell, anode and cathode of the cell is

• copper electrode, zinc

• zinc, copper

• aluminium, zinc

• nickel, cobalt

Following will happen if battery charging rate is too high

• Excessive gassing will occur

• Temperature rise will occur

• Bulging and buckling of plates we occur

• All of the above

Tags

NGSS.HS-PS3-4