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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MCQs: All electric wires are well insulated for the purpose of safety with some
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MCQs: The property of a substance which offers opposition to the flow of current through it is called
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MCQs: The time a current of 30 mA takes to deliver 30 C charge is
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MCQs: The electric power enters our house through
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MCQs: Insulators can be easily charged by
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MCQs: If 2 resistors of 5kΩ and 7kΩ are connected in series across a 15V battery, then the current flowing through each of the resistance should be
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MCQs: The wires carrying electricity are covered with good insulator, called
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MCQs: To pass the current through ammeter it should be connected in
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MCQs: The rate of flow of charges is called
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MCQs: Potential difference across ends of conductor causes loss of
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MCQs: The SI unit of current is
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