Question

Give some sources of potential difference (P.D) that you know.

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One example of a rechargeable source of P.D.
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Give one example of a source of P.D. which is used once and finally thrown away_____________

Answer 1

1. All type of Batteries
2. secondary batteries ( Rechargeable battery) example car battery etc . these battery contain Sulphuric acid as there electrolytic
3. Primary Battery (Non Recharge) example Dry cell , pencil cell . These battery contain chemicals they react when we use the battery and can't be recharged again we need to replace each and every time