1) The 12V car battery would a. kill you b. electrocute you c. give you a nasty shock d. cause your body burst
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2) If a live wire touches the metal casing of an object, the metal casing becomes a. neutral b. earthed c. live d. hot
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3) The electrolyzed substance is known as a. conductor b. insulator c. electrolyte d. electro decay
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4) Filament is present in a. center of the sealed glass b. front of the sealed glass c. roots of the sealed glass d. head of the sealed glass
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5) The vibration of cone produces a. light b. sound c. heat d. crystals
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6) Radio, TV, CD Player and sound system have a. loudspeakers b. microphones c. antennas d. cathode tubes
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7) A part of an electric circuit which is used to limit the amount of electric current flowing through the circuit is known as a. diode b. thermistor c. radiator d. resistor
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8) The slowing down of electrons depends upon a. material b. mass of conductor c. volume of conductor d. length of conductor
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9) When water is electrolyzed, the gas collected at cathode, is a. sulphur b. oxygen c. hydrogen d. sulphur dioxide
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10) For protection of electrical appliances a. resistors can be used b. fuses can be used c. thick wires can be used d. thin wires can be used
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11) The resistors that have set resistance, are known as a. fixed resistors b. variable resistors c. thermistors d. fixators
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12) If temperature rises very high, it can be used in a. electric lamps b. electric heaters c. electric coolers d. electric fans
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13) The first thing on which the amount of consumed energy depends, is a. amount of ions in a wire b. amount of resistance c. amount of electron's flow d. length of time, the appliance has been used for
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14) An example in which light emitting diodes are used, is a. calculator b. hard drive c. optical drive d. analog watch
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15) Against resistance when electric current is forced through a conductor, electrons collide with the atoms of conductor which make them a. hot b. cold c. vibrate d. tremble
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16) The energy which is used to push electrons towards the positive terminal is known as a. mechanical energy b. kinetic energy c. electrical energy d. potential energy
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17) A simple enclosed length of wire that has a low melting point is known as a. resistor b. fuse c. circuit breaker d. thermistor
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18) Current conducting path through wires, bulb and battery is known as a. conductor b. circuit c. electrical flow d. convectional flow
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19) The relationship between magnetism and electricity was discovered in a. 1818 b. 1819 c. 1820 d. 1821
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20) The positive electrode of the electrolytic cell is known as a. cathode b. anode c. posit rode d. nematode
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