Electric Circuits Objective Questions
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Nodal analysis can be applied for
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For same voltage, the ratio resistance of 100 W lamp to resistance of 25 W lamp is
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Mesh analysis is applicable for
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What will be the capacitance when distance between the 2 plates of a condenser of capacitance 8 micro farad is reduced from 10 mm to 4 mm?
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Internal resistance of ideal voltage source is
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Which of the following defined the average value ?
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200 resistors of 200 Ω each are connected in parallel. Their equivalent resistance will be
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If a pure inductor is connected across the ac source, the average power taken by the inductor is
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For symmetrical wave form average value of one full cycle is
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The capacitance of a conductor is varying from 2 microfarad to zero in 1 sec linearly if the voltage applied to it is 6 V the energy stored in 0.5 sec in the condenser is
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C_{eq} of two capacitors connected in series is given by
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When we use super node technique
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A parallel plate capacitor has a capacitance of C farad. It area of the plates is doubled and the distance between them is half, the capacitance of the capacitor is
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The resistivity of the conductor depends on
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Which of the following has least resistivity?
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When AC flows through a pure capacitance then the current
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Purpose of using capacitor is / are
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Specific resistance is measured in
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Which of the following quantities consists of SI unit as WATT ?
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Internal resistance of ideal current source is
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To apply reciprocity theorem response to excitation ratio is
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Resistance of which material does not change with change in temperature ?
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A cube of material of side 1 cm has a resistance of 0.002 Ω between its opposite faces. If the same volume of the material has a length of 4 cm and a uniform cross  section, the resistance of this length will be
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A wire of resistance R has it length and cross  section both doubled. Its resistance will become
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Which of the following lamp has least resistance ?
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The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be
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A capacitor that stores charge of 0.5 C at 10 V has a capacitance of _____________ farad.
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A capacitor is connected to supply with switch and the switch is connected between capacitor and supply. Initially switch is open at time zero, and then switch is closed. Then how capacitor behaves at time t = 0+ ?
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Power dissipation in ideal inductor is
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The unit of capacitance is
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