$n$ equal resistors are first connected in series and then connected in parallel. The ratio of the maximum to the minimum resistance is

How many microamperes $(\mu A)$ are equal to $1$ milliampere $(mA)$?

Two resistors of resistance $2 \,\Omega$ and $4 \,\Omega$ when connected to a battery will have:

What is the unit of electric potential difference?

If you connect three resistors having values $2 \, \Omega$, $3 \, \Omega$, and $5 \, \Omega$ in parallel, will the value of total resistance be less than $2 \, \Omega$, greater than $5 \, \Omega$, or lie between $2 \, \Omega$ and $5 \, \Omega$? Explain.

What is the resistance of an ideal voltmeter?