1) The unidirectional current is called a. alternating current b. electric charge c. direct current d. indirect current
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2) As compare to thin wires, thick wires have a. more resistance b. no resistance c. less resistance d. same resistance
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3) A 50 W television and 3 kW oven are connected to a 300 V supply. The resistance of each appliance is respectively a. 200Ω, 20Ω b. 1875Ω, 6Ω c. 308Ω, 589Ω d. 350Ω, 208Ω
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4) To pass no current through it, an ideal voltmeter should have a. very large resistance b. very small resistance c. no resistance d. none of above
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5) Current due to the flow of positive charges is called a. electronic current b. conventional current c. protonic current d. all of above
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6) Resistors are connected end to end in a. series combination b. parallel combination c. circular combination d. random combination
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7) To pass the maximum current in the circuit, an ideal galvanometer should have a. large resistance b. very small resistance c. no resistance d. none of above
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8) In metals, the current is produced due to the flow of a. positive charges b. negative charges c. no charges d. partially charges
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9) The time interval after which the alternative current voltage or current repeats its value is called its a. frequency b. time period c. amplitude d. wavelength
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10) The agency which provides the potential difference for the steady flow of current in the copper wire is the a. battery b. voltmeter c. galvanometer d. ammeter
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11) Materials having a resistance that changes with voltage or current are called a. ohmic b. non-ohmic c. batteries d. capacitors
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12) 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 power dissipated in the resistor is a. 0.72 W b. 1.5 W c. 0.99 W d. 3 W
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13) A thermistor is used in a circuit that senses a. current changes b. voltage changes c. area changes d. temperature changes
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14) Electric potential and Electromotive force (EMF) are a. different terms b. have different units c. same terms d. undefined terms
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15) The property of a substance which offers opposition to flow of current is called a. friction b. friction c. current d. Electromotive force (Electromotive force (EMF))
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16) The neutral wire carries a. zero potential b. maximum potential c. unit potential d. minimum potential
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17) An ideal voltmeter should have a. low resistance b. high resistance c. zero resistance d. minimal resistance
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18) The appliances should not operate after the fuse has blown, so the fuses are connected with a. Earth/ground wire b. livewire c. neutral wire d. delta wire
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19) Human body is a. insulator b. low resistive c. conductor d. electrolyte
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20) In series combination, the current passing through each resistor is a. non determined b. zero c. same d. different
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