MCQs: NOT gate works in such a way that if its input is 0, its output would be
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MCQs: To deflect electrons to desired positions on the screen of a television tube, we use
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MCQs: The grid in the electron gun is connected to
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MCQs: When the beam of electrons is passed between the pates having an electric field, the beam deflects towards
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MCQs: The process of transforming information into 1's and 0's is called
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MCQs: The output of two-input NOR gate is 1 when
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MCQs: The quantities that we perceive by our senses are usually
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MCQs: Radio, televisions and telephones process
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MCQs: J.J Thomson in 1897 observed the deflection of cathode rays by
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MCQs: The electrons are produced by thermionic emission from a tungsten filament heated by
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MCQs: Things which can have two possible states are known as
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MCQs: Substances that have constant resistance over a wide range of voltages are
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MCQs: A resistor having resistance 6.2Ω is connected across a battery of 5 V using a wire of negotiable resistance. Current passes through the resistor are 0.4 A. The total power produced by the battery is
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MCQs: As compare to short wires, long wires have
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MCQs: The device that disconnects the supply automatically if current exceeds the normal value is known as
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MCQs: As per Ohm's law, V (potential difference) is equal to
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MCQs: Ohm is denoted by the symbol
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MCQs: The wire maintained at zero potential by connecting it to the Earth at the power station itself is called
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MCQs: Watt is equal to one
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MCQs: The resistance and length of wire are
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