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  • An ideal voltmeter V is connected to a resistor and a battery with emf&

An ideal voltmeter V is connected to a 20 \Omega resistor and a battery with emf  10\mathrm{~V} and internal resistance 0.5 \Omega as in figure.

The ratio of current in 20\Omega resistor with the voltage of the battery

Option: 1

\frac {2\Omega}{V}


Option: 2

\frac { 4\Omega}{V}


Option: 3

\frac { 0\Omega}{V}


Option: 4

None


Answers (1)

best_answer

\rightarrow Ideal voltmeter means infinite resistance

     So current through the 20 \Omega resistor is zero.

 

     \text { Ratio }=\frac{0 \Omega}{10 \mathrm{~V}}=\frac {0 \Omega}{V}

Posted by

Suraj Bhandari

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