If the rheostat slider were to move from the | vedclass

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

Question

(C) The circuit consists of a battery,a fixed resistor,and a rheostat in series. The voltmeter $V_1$ is connected across the fixed resistor.According

Vedclass · Accepted Answer

Increase continuously

Vedclass · Answer

(C) The circuit consists of a battery,a fixed resistor,and a rheostat in series. The voltmeter $V_1$ is connected across the fixed resistor.According to Ohm's law,the reading of the voltmeter $V_1$ is given by $V_1 = I 	imes R$,where $I$ is the current in the circuit and $R$ is the resistance of the fixed resistor.When the rheostat slider moves from the extreme right to the far left,the effective resistance of the rheostat decreases.Since the total resistance of the circuit decreases,the total current $I$ flowing through the circuit increases $(I = \frac{E}{R_{total}})$.As the current $I$ increases and the resistance $R$ of the fixed resistor remains constant,the voltage drop $V_1 = I 	imes R$ across the fixed resistor increases continuously.

If the rheostat slider were to move from the extreme right to the far left,how will the reading of voltmeter $V_1$ change?

Similar Questions

In the circuit shown below,the resistances are given in $\Omega$ and the battery is assumed ideal with an emf equal to $3\,V$. The voltage across the resistance $R_4$ is ................. $V$.

Consider the following circuit given below. The bulb will light up,if

Three resistors having resistances $r_{1}, r_{2}$ and $r_{3}$ are connected as shown in the given circuit. The ratio $\frac{i_{3}}{i_{1}}$ of currents in terms of resistances used in the circuit is :

The electrochemical equivalent of a material in an electrolyte depends on

The magnitude and direction of the current in the following circuit is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module