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Electric Circuits

Electric Circuits
What is the mass number of an element that has 19 protons, 19 electrons, and 20 neutrons?

 19.
 39.
 38.
 20.

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Electric Circuits
A capacitor that stores charge of 0.5 C at 10 V has a capacitance of _____________ farad.

 5.
 10.
 20.
 0.05.

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Electric Circuits
In RLC parallel circuit if current through capacitor and inductor is equal. Then What is the power factor?

 leading
 unity
 zero
 lagging

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Electric Circuits
In the cauer-1 form of LC network---------is series element and --------is shunt element respectively?

 C and L
 L and C
 L and L
 C and C

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Electric Circuits
What is apparent power in AC operation?

 Product of voltage and current.
 Product of voltage and current at full load.
 Product of rms voltage and rms current.
 Product of voltage and current at no load.

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Electric Circuits
A 35 V source is connected to a series circuit of 600 Ω and R as shown. If a voltmeter of internal resistance 1.2 kΩ is connected across 600 Ω resistor, it reads 5 V. The value of R is

 2.4 k Ω.
 3.6 k Ω.
 7.2 k Ω.
 1.2 k Ω.

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