10th Science - Unit 4 - Book Back and Creative One Mark Questions - Free Online Test - English Medium
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Give the name of components which is designed to oppose the flow of current
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MCB is used to protect house hold electrical appliances
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All good  conductors have high
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If one of the resistance in a parallel circuit is removed the total resistance will be
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A small wire presents inside the bulb is called
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Resistance of the wire is inversely proportional to length of the wire
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Why are copper wires used as connecting wires
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1 Ampere is given as
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The resistance of a conductor directly  proportional
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What happens to current and resistance if the voltage is doubled
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Direction of conventional current is from
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In  which one of the following heating effect the current is undesirable
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if the resistance in a series circuit doubles total current will be
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A heating elements used in the electric iron box and the electric heater is
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When will be the current flow in a  circuit?
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A complete electric circuit is called ____ circuit
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Series arrangement is used in domestic circuits
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The SI unit for electric current is the coulomb
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The unit of electric potential is ohm
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SI unit of resistance is
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Conductance is expressed in terms of
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Conductivity is the _____ of resistivity
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What does a switch do?
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Rheostat is also called as a variable resistor
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The relation between potential   difference (V) and current (I) was discoverd by
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The device which easily closes or open an electric circuit is called as  
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George Simon ohm invented electrochemical cell
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A short circuit has
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If there are two bulbs  i.e  150 W bulb and 60 W bulb so which has more resistance?
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If two unequal resistors connected in parallel then
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If resistance decreases, then current will
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Nichrome is an alloy of lead and chromium
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Which of the following is correct
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The graph between V and I is a straight line
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A series circuit consists of three resistors with values of 140, 250 and 220. The titak resistance is.
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The amount of work done in joules when one unit electric charges moves from one point to another point in an electric circuit is called
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The effective resistance of three resistors connected in series is lasser than the lowest of the individual resistances
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Why battery is used in the circuit
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Electric  power is the rate of consumption of electrical energy
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The relation between potential difference (V) and current (I) is
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Ohm 's law states the relationship between power and voltage
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Electric iron box and electric heater works on the principle of
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The number of electrons in one coulomb of charge is
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A thin wire has less resistance than the thick wire of same length and same material
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How many terminals an electric bulb consist of?
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A bird sitting on an uninsulated wire carrying a current feels quite safe because
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Which of following relation is correct for voltage work done and charge
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A 110 W ,220 V bulb draws a current
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Choose the correct statement
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Kilowatt hour is unit of
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Conductance is the property of the material to oppose the flow of charges
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One unit of electrical energy consumed equal to 1000 kilowatt hour
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Which  of  the following laboratory apparatus is used during the verification of Ohm's law?
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Fuse wire
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According to  Ohm's law if voltage increase and resistance stays the same
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What happens when ammeter connected in parallel
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Which  is considered t be the common reference  for a parallel circuit?
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The electric current in a closed circuit always flows from the ____ terminal of the electric cell to _____ terminal
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In  a simple circuit, why does the bulb glow when you close the switch?
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If resistance of a wire is r ohms and wire is stretched to double its length, then what is its resistance?
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Tesla Invented lightning conductor
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Specific resistance is also called as electrical resistivity
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A parallel circuit consist of three resistors with values of 430, 210 and 100.The total resistance is
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The SI unit of power is
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The potential difference required for the flow of charges is provided by the voltmeter
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In an ammeter device the terminal (Red) which has higher potential is called positive terminal
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In parallel combination resistance decrease due to increase in
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A fuse wire is made of an alloy of tin and lead
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A complete electric circuit is called as
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The resistance of material depends on
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Kilowatt - hour is unit of
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When one of three series resistors  is removed from  a circuit and the circuit is reconnected the current
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One micro ampere is equal to 10^-3 A
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