Question

A capacitor has capacitance C. Is this information sufficient to know what maximum charge the capacitor can contain? If yes, what is this charges? If no, what other information is needed?

Answer 1

No, this data is insufficient.  

Explanation:

• Since the potential difference is proportional to the charge across the capacitor, we should understand the potential difference applied across the capacitor.   $q \alpha \vee \rightarrow q=C V$
• Here, V is the applied potential difference, q is the charge and C is the constant of proportionality, i.e., capacitance.  

• In a cell, maximum charge is stored, which will be EC. E denotes the connected cell’s emf and C denotes capacitance.  

Answer 2

Answer:

Where,

C is the capacitance of the capacitor

V is the potential on the capacitor

Therefore, without knowing the potential difference and only capacitance we cannot find out the maximum charge capacitor can contain.

∴ The following information is insufficient.