capacitor

A circuit with ideal elements is shown. Which one of the following options correctly identifies all the linear elements in the circuit?

The electrical network shown has an independent voltage source (10 V) and a current source (1 u(t) mA). The voltage across the capacitor at time instants (in seconds) t = 0+, t = 0...

The circuit shown in the figure is initially in the steady state with the switch K in open condition and K in closed condition. The switch K is closed and K is opened simultaneousl...

A co-axial cylindrical capacitor shown in Figure (i) has dielectric with relative permittivity εr1 = 2. When one-fourth portion of the dielectric is replaced with another dielectri...

A 0.1 µF capacitor charged to 100 V is discharged through a 1 KΩ resistor. The time in ms (round off to two decimal places) required for the voltage across the capacitor to drop to...

The initial charge in the 1 F capacitor present in the circuit shown is zero. The energy in joules transferred from the DC source until steady state condition is reached equals ___...

In the circuit shown below, the value of capacitor C required for maximum power to be transferred to the load is

A single phase induction motor draws $$12MW$$ power at $$0.6$$ lagging power. A capacitor is connected in parallel to the motor to improve the power factor of the combination of mo...

A capacitor is made with a polymeric dielectric having an $$\varepsilon_0$$ of 2.26 and a dielectric breakdown strength of 50 kV/cm. The permittivity of free space is 8.85 pF/m. If...

At an industrial sub-station with a $$4$$ $$MW$$ load, a capacitor of $$2$$ MVAR is installed to maintain the load power factor at $$0.97$$ lagging. If the capacitor goes out of se...

Energy stored in a capacitor over a cycle, when excited by an $$a.c.$$ source is