Questions Related to physics
What is advantage of primary cell over secondary cell
Primary cells are light and cheap. All other options apply to secondary cell.
Primary cells are
Primary cells are use and throw. They are not recyclable since structure is carefully packed. They are not rechargable since chemical reactions involved are not recyclable.
Primary cells have _____ resistance and secondary cells have ______ resistance
Primary cells have high internal resistance while secondary cells have low internal resistance.
Secondary cells are called
Secondary cells are also called accumulators.
Which one of the following primary cells has emf 1.08 volts and which remains fairly constant?
Dry cell have a typical voltage of around 1.1 Volts.They become inadequate for use with time because their internal resistance increases many fold.
The primary cell which is used in daily life is-
Commonly used cell is dry cell.
The current capacity of the charged secondary cell does not depend on ?
The current capacity of the charged secondary cell does not depend on temperature. so if the temperature is increased or decreased there is no any change in current capacity of any secondary cell, hence option C is correct.
Cell which cannot be charged is
A primary cell cannot be charged whereas secondary and electrochemical cell can be recharged.charging of a cell depends upon cell reaction is either reversible or irreversible . when reaction is irreversible then cell can not be charge after one time discharge.
When two batteries are connected in series the voltage in the circuit will _____________ .
In a series connection the positive terminal of the first battery is connected to the negative terminal of the second battery.
Choose the wrong option
Both cell and battery store the chemical energy and then transforms the stored chemical energy to electrical energy. But cell is a single unit with positive and negative terminal whereas battery is a combination of cells connected end to end i.e. positive to negative terminal.