The variation of current (i) passing through | vedclass

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

Question

(D) According to Ohm's Law,$V = iR$,which implies $R = V/i$.In the given $V-i$ graph,the resistance $(R)$ at any point is equal to the slope of the ta

Vedclass · Accepted Answer

None of these

Vedclass · Answer

(D) According to Ohm's Law,$V = iR$,which implies $R = V/i$.In the given $V-i$ graph,the resistance $(R)$ at any point is equal to the slope of the tangent at that point,which is given by $	an 	heta = \frac{dV}{di}$.As we move from point $A$ to $D$ along the curve,the angle $	heta$ that the tangent makes with the current axis $(i)$ decreases.Since the slope of the curve decreases as we move from $A$ to $D$,the resistance at these points follows the order $R_A > R_B > R_C > R_D$.Comparing this with the given options:$A)$ $R_C = R_D$ is incorrect.$B)$ $R_B > R_A$ is incorrect as $R_A > R_B$.$C)$ $R_C > R_B$ is incorrect as $R_B > R_C$.Therefore,the correct option is $D$.

The variation of current $(i)$ passing through a conductor as the voltage $(V)$ applied across its ends is varied is shown in the adjoining diagram. If the resistance $(R)$ is determined at the points $A, B, C$ and $D$,we will find that

Similar Questions

How is the $V-I$ graph of a material following Ohm's law?

$A$ circuit to verify $Ohm's$ law uses an ammeter and a voltmeter. How should they be connected to the resistor?

All of the following statements are true except:

The resistance of a discharge tube is

$A$ solenoid is at a potential difference of $60\, V$ and the current flowing through it is $15\, A$. The resistance of the coil will be ............ $\Omega$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module