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PhysicsCurrent ElectricityEquivalent ResistanceMedium2 minPYQ_2019

PhysicsMediumsingle choice

A circuit contain two resistance $R_{1}$ and $R_{2}$ in series. Find the ratio of input voltage to voltage of $R_{2}$ .

Options:

Answer:

Solution:

The situation is shown in the circuit diagram.Current flowing through the circuit, $I = \frac{V _{i}}{R _{1} + R _{2}}$ Voltage across $R_{2}, V_{2} = R_{2}, V_{2} = \frac{V _{i} R _{2}}{R _{1} + R _{2}}$ $\Rightarrow \frac{R _{1} + R _{2}}{R _{2}} = \frac{V _{i}}{V _{2}} \Rightarrow \frac{V _{i}}{V _{2}} = \frac{R _{1} + R _{2}}{R _{2}}$

Stream:JIPMERSubject:PhysicsTopic:Current ElectricitySubtopic:Equivalent Resistance

⏱ 2mℹ️ Source: PYQ_2019

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