Recent questions tagged capacitance / GO Electrical

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GATE Electrical 2014 Set 1 | Question: 8
A combination of $1\:\mu F$ capacitor with an initial voltage $V_{c}(0)=-2\:V$ in series with a $100\:\Omega$ resistor is connected to a $20\:mA$ ideal $dc$ current source by operating both switches at $t=0s$ as shown. Which of the following graphs shown in the options approximates the voltage $V_s$ across the current source over the next few seconds?

A combination of $1\:\mu F$ capacitor with an initial voltage $V_{c}(0)=-2\:V$ in series with a $100\:\Omega$ resistor is connected to a $20\:mA$ ideal $dc$ current sourc...

makhdoom ghaya

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makhdoom ghaya asked Feb 11, 2017

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GATE Electrical 2014 Set 1 | Question: 7
$C_0$ is the capacitance of a parallel plate capacitor with air as dielectric $($ as in figure $(a))$. If, half of the entire gap as shown in figure $(b)$ is filled with a dielectric of permittivity $\epsilon _r$ , the expression for the modified capacitance is ... $(C_0+\epsilon _r) \\$ $\dfrac{C_0}{2}\epsilon _r \\$ $C_0(1+\epsilon _r)$

$C_0$ is the capacitance of a parallel plate capacitor with air as dielectric $($ as in figure $(a))$. If, half of the entire gap as shown in figure $(b)$ is filled with ...

makhdoom ghaya

9.4k points

makhdoom ghaya asked Feb 11, 2017

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GATE Electrical 2016 Set 2 | Question: 16
A parallel plate capacitor filled with two dielectrics is shown in the figure below. If the electric field in the region $A$ is $4 kV/cm$, the electric field in the region $B$, in $kV/cm$, is $1$ $2$ $4$ $16$

A parallel plate capacitor filled with two dielectrics is shown in the figure below. If the electric field in the region $A$ is $4 kV/cm$, the electric field in the regio...

makhdoom ghaya

9.4k points

makhdoom ghaya asked Jan 29, 2017

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GATE Electrical 2016 Set 1 | Question: 54
The circuit below is excited by a sinusoidal source. The value of $R$, in $\Omega$, for which the admittance of the circuit becomes a pure conductance at all frequencies is _____________.

The circuit below is excited by a sinusoidal source. The value of $R$, in $\Omega$, for which the admittance of the circuit becomes a pure conductance at all frequencies ...

makhdoom ghaya

9.4k points

makhdoom ghaya asked Jan 29, 2017