What is the minimum resistance which can be made using five resistors each of $1/5\,\Omega$?

Which symbol is used for the resistivity of a conductor?

The amount of charge passing through a cell in $4 \, s$ is $12 \, C$. Find the current supplied by the cell. (in $, A$)

Which of the following is the symbol for a resistor?

Draw a circuit diagram for a circuit consisting of a battery of five cells of $2 \text{ V}$ each, a $5 \, \Omega$ resistor, a $10 \, \Omega$ resistor, and a $15 \, \Omega$ resistor, an ammeter, and a plug key; all connected in series. Also, connect a voltmeter to record the potential difference across the $15 \, \Omega$ resistor and calculate:
$(i)$ the electric current passing through the above circuit and
$(ii)$ the potential difference across the $5 \, \Omega$ resistor when the key is closed.

How will you conclude that the same potential difference (voltage) exists across three resistors connected in a parallel arrangement to a battery?