Consider the following statements regarding a motor car battery: 1. The voltage is usually 12 V.

Question

Consider the following statements regarding a motor car battery:

1. The voltage is usually 12 V.

1. Electrolyte used is hydrochloric acid.

1. Electrodes are lead and copper.

1. Capacity is expressed in ampere-hour.

Which of the above statements are correct?

(a) 1 and 2 (b) 2 and 3 (c) 3 and 4 (d) 1 and 4

Answer 1

(d) In case of motor car battery or automotive batteries a nominal 12-volt potential difference is provided by connecting six galvanic cells in series. Capacity of these batteries is expressed in amperehour. Electrolyte used is a solution of about 35% sulphuric acid and 65% water and electrodes used are plates of lead and separate plates of lead dioxide.