Electric Circuits Objective Questions
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To apply reciprocity theorem response to excitation ratio is
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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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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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For symmetrical wave form average value of one full cycle is
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The unit of capacitance is
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Which of the following defined the average value ?
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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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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 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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Specific resistance is measured in
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Power dissipation in ideal inductor is
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Purpose of using capacitor is / are
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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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Internal resistance of ideal current source is
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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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Resistance of which material does not change with change in temperature ?
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Which of the following quantities consists of SI unit as WATT ?
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200 resistors of 200 Ω each are connected in parallel. Their equivalent resistance will be
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When AC flows through a pure capacitance then the current
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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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If a pure inductor is connected across the ac source, the average power taken by the inductor is
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Mesh analysis is applicable for
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When we use super node technique
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Internal resistance of ideal voltage source is
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C_{eq} of two capacitors connected in series is given by
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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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Nodal analysis can be applied for
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