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Standard XII

Physics

Increasing Capacitance Even More

A capacitor b...

Question

A capacitor becomes a perfect insulator when connected with _______ source.

$[$ Given, analogue of resistance for capacitor, $X_{C} = 1 / ω C$ where $ω$ is the angular frequency of current and $C$ is the capacitance $]$

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Solution

The correct option is B DC
Given:

Analogue of resistance for capacitor, $X_{C} = 1 / ω C$ ,

Where $ω$ is the angular frequency of current and $C$ is the capacitance.

For DC, $ω = 0 \Rightarrow X_{C} = \infty$ or capacitor become a perfect insulator.

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Similar questions

Q. A series combination of resistor (

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Q. An ac voltage source

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A capacitor becomes a perfect insulator when connected with _______ source. [Given, analogue of resistance for capacitor, XC=1/ωC where ω is the angular frequency of current and C is the capacitance]

The correct option is B DCGiven: Analogue of resistance for capacitor, XC=1/ωC, Where ω is the angular frequency of current and C is the capacitance. For DC, ω=0⇒XC=∞ or capacitor become a perfect insulator.

A capacitor becomes a perfect insulator when connected with _______ source.

$[$ Given, analogue of resistance for capacitor, $X_{C} = 1 / ω C$ where $ω$ is the angular frequency of current and $C$ is the capacitance $]$

The correct option is B DC
Given:

Analogue of resistance for capacitor, $X_{C} = 1 / ω C$ ,

Where $ω$ is the angular frequency of current and $C$ is the capacitance.

For DC, $ω = 0 \Rightarrow X_{C} = \infty$ or capacitor become a perfect insulator.