A student carries out an experiment and plots | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) According to Ohm's law, $V = IR$, which implies $I = V/R$ or $R = V/I$.In the given $I-V$ graph, the slope of the line represents $I/V$, which is

Vedclass · Accepted Answer

$R_1 < R_2 < R_3$

Vedclass · Answer

(C) According to Ohm's law, $V = IR$, which implies $I = V/R$ or $R = V/I$.In the given $I-V$ graph, the slope of the line represents $I/V$, which is equal to $1/R$.Therefore, the slope of the graph is inversely proportional to the resistance $(Slope \propto 1/R)$.From the figure, the slope of the line for $R_1$ is the greatest, followed by $R_2$, and then $R_3$ (i.e., $Slope_1 > Slope_2 > Slope_3$).Since the slope is inversely proportional to resistance, a higher slope indicates a lower resistance.Thus, $R_1 < R_2 < R_3$.

$A$ student carries out an experiment and plots the $V-I$ graph of three samples of nichrome wire with resistances $R_1, R_2$ and $R_3$ respectively (Figure). Which of the following is true?

Similar Questions

$A$ metal has a very large number of free electrons and a non-metal has a very small number of free electrons.

In a household,$5$ tube lights of $40 \text{ W}$ each are used for $5 \text{ hours}$ and an electric press of $500 \text{ W}$ for $4 \text{ hours}$ everyday. Calculate the total energy consumed by the tube lights and press in a month of $30 \text{ days}$.

The formula for an electric current is $.....$

Which effect of electric current is used in electroplating?

What is electrical resistivity? In a series electrical circuit comprising a resistor made up of a metallic wire, the ammeter reads $5\, A$. The reading of the ammeter decreases to half when the length of the wire is doubled. Why?

Vedclass Test Series

Exam Paper Generator

Online Exam Module