The unit $Joule/second$ $(J/s)$ is the unit of which of the following?

The electrical appliance having higher power draws a larger current.

Insulators like wood and rubber have a very low electrical resistance.

$1 \; kWh = \ldots \ldots \; \text{joules}$

Study the $V - I$ graph for a resistor as shown in the figure and prepare a table showing the values of $I$ (in amperes) corresponding to four different values of $V$ (in volts). Find the value of current $I$ (amperes) for $V=10$ volts. How can we determine the resistance of the resistor from this graph?

Resistance of a metal wire of length $1\, m$ is $26\, \Omega$ at $20^{\circ} C$. If the diameter of the wire is $0.3\, mm$,what will be the resistivity of the metal at that temperature?