DGS 3-3 Primary & Secondary Cells Test - Mr. Shaw

In an Electric Cell, the anode is _____________.(1 Mark)

• Positive

• Negative

In an Electric Cell, the electrons flow from the ___________ to the ____________. (2 Mark)

• anode to the cathode

• cathode to the anode

Which of the following is primary cell: (1 Mark)

• Lead Acid Cell

• Carbon-Zinc cell

• Nickel Cadmium Cell

• Silver Zinc Cell

If five ( 2.2 V) batteries are connected

in a parallel configuration, what is the

total voltage of the connection? (2 marks)

Nine cells, each with an internal resistance of 0.25 and an e.m.f. of 1.5V are connected in series.

(i) Determine the resultant e.m.f. (2 Marks)

(ii) Determine the internal resistance of the batteries ( 2 Marks)

Three cells, each with an internal resistance of 0.2 and an e.m.f. of 2V are connected in series.

(i) Determine the resultant e.m.f. (2 Marks)

(ii) Determine the internal resistance of the batteries ( 2 Marks)

The purpose of an electrical cell is to change ________ energy into electrical energy (1 Mark)

• Mechanical

• Chemical

• Potential

• Acid

__________ is another name for the open-circuit voltage of a cell. (1 Mark)

• p.d

• terminal voltage

• emf

• voltage drop

In order to obtain a higher current, cells are normally connected in _________. (1 Mark)

• series

• parallel

• rows

• opposition

When cells are connected in series, the total voltage of the combination is equal to the _____ of the individual voltages, (1 Mark)

• difference

• ratio

• sum

• product