Question

Primary cells have _____ resistance and secondary cells have ____ resistance.
A) Low, high
B) High, low
C) Low, low
D) High, high

Answer 1

Hint:The primary cells are the ones that cannot be recharged and must be discarded after the expiration of its lifetime whereas secondary cells are the ones that are rechargeable when the initial charge is finished.

Complete step by step answer:
We are given to find the nature of resistance of primary and secondary cells.
A primary cell is designed to be used and discarded and it cannot be recharged with electricity and reused like a secondary cell.A secondary cell can be recharged (rechargeable) when the charge present in it gets over.These two cells differ in size and the material they are made with.Dry cells and alkaline batteries are some of the examples of Primary cells. Lead acid, Lithium ion batteries are some of the examples of Secondary cells.Primary cells contain a lot of chemicals in its internal parts which provide resistance whereas secondary cells contain only lead mostly to provide resistance. Lead offers very low resistance. Thus primary cells have high internal resistance whereas secondary cells have low internal resistance.
Hence, the correct choice is Option B, primary cells have high resistance and secondary cells have low resistance.

Note:Resistance is the property of a conductor that opposes the flow of current passing through it whereas resistivity is the ratio of resistance offered by the material per unit length per unit area. Do not confuse resistance with resistivity.