General Science Physics Questions for SSC / UPSC Set 9

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General Science Physics Questions for SSC / UPSC MCQs Set 9 Questions And Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Online free practice Quiz  – General Studies

1 .The resistance of an ideal ammeter is
A.  zero
B.  very low
C.  very high
D.  infinite
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2 .Two bulbs are fitted in a room in the domestic electric installation. One of them glows brighter than the other. Then
A.  the brighter bulb has smaller resistanc
B.  the brighter bulb has larger resistance
C.  both the bulsbs have the same resistance
D.  none of these
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3 .The heating element of an electric heater should be made of a material having
A.  high specific resistance and high melting point
B.  high specific resistance and low melting point
C.  low specific resistance and low melting point
D.  low specific resistance and high melting point
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4 .When a body is earth conncected, electrons from the earth flow into the body. This means the body is
A.  charged negatively
B.  an insulator
C.  uncharged
D.  charged positively
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5 .Current provided by a battery is maximum when
A.  internal resistance is equal to external resistance
B.  internal resistance is greater than external resistance
C.  internal resistance is less than external resistance
D.  none of these
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6 .Fuse wire should have
A.  low resistance, high melting point
B.  low resistance, low melting point
C.  high resistance, low melting point
D.  high resistance, high melting point
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7 .If ahigh power heater is connected to electric mains, then the bulbs in the house become dim because there is a
A.  current drop
B.  potential drop
C.  no current drop
D.  no potential drop
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8 .Metals are good conductor of heat than insulator because
A.  their atoms are relatively aprt
B.  they contain free electron
C.  they have reflecting surface
D.  none of these
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9 .Which of the following is not the cause of low conductivity of electrolyte
A.  Low drift velocity of ions
B.  High resistance offered by the solution of the motion of ions
C.  Low number of density of charge carriers
D.  Ionization of salt
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10 .Good resistance coils are made of
A.  Copper
B.  manganin
C.  gold
D.  silver
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11 .The primary cell is a
A.  secondary cell
B.  primary cell
C.  both ( a ) and ( b )
D.  None of these
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12 .When a charged particle entres a uniform magnetic field its kinetic energy
A.  Remains constant
B.  increased
C.  Decreases
D.  becomes
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13 .The core of an electromagnet is made of soft iron because soft iron has
A.  small susceptibility and small retentivity
B.  large susceptibility and small retentivity
C.  large density and large retentivity
D.  small density and large retentivity
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14 .Vibration magnetometer works on the principle of
A.  torque acting on the bar magnet
B.  force acting on the bar magnet
C.  both the force and the torque acting on the bar magnet
D.  none of these
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15 .Farraday's law of electromagnetic induction is related to the
A.  law of conservation of charge
B.  law of conservation of energy
C.  third law of motion
D.  none of these
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