A wire is cut into two equal parts and then connected in parallel. How will its resistance get affected?

A wire is cut into two equal parts and then connected in parallel. How will its resistivity get affected?

Two students perform experiments on two given resistors $R_1$ and $R_2$ and plot the following $V$-$I$ graphs. If $R_1>R_2,$ which of two diagrams correctly represent the situation on the plotted curves? Justify your answer.

A child has drawn the electric circuit to study Ohm's law as shown in figure. His teacher told that the circuit diagram needs correction. Study the circuit diagram and redraw it after making all corrections.

Find in which one of the above sets of readings the trend is different from others and must be rejected. Calculate the mean value of resistance of the resistor based on the remaining sets of readings.