ONLINE MCQ EE-RESISTANCE AND OHM`S LAW 5

Q41. The resistance of a conductor varies
inversely as
 A.  length  B.  area of cross-section
 C.  temperature  D.  resistivity

 

Q42. A light bulb draws 300 mA when the
voltage across it is 240 V. The resistance
of the light bulb is
 A.  400 ω  B.  600 ω
 C.  800 ω  D.  1000 ω

 

Q43. A 3 ω resistor having 2 A current will
dissipate the power of
 A.  2 watts  B.  4 watts
 C.  6 watts  D.  8 watts

 

Q44. Two copper conductors have equal
length. The cross-sectional area of one
conductor is four times that of the
other. If the conductor having smaller
cross-sectional area has a resistance of
40 ohms the resistance of other conductor
will be
 A.  160 ohms  B.  80 ohms
 C.  20 ohms  D.  10 ohms

 

Q45. A thermistor has
 A.  positive temperature coefficient  B.  negative temperature coefficient
 C.  zero temperature coefficient  D.  variable temperature coefficient

 

Q46. Conductance is reciprocal of
 A.  resistance  B.  inductance
 C.  reluctance  D.  capacitance

 

Q47. The resistance of a parallel circuit consisting
of two branches is 12 ohms. 1f
the resistance of one branch is 18 ohms,
what is the resistance of the other?
 A.  18 ω  B.  36 ω
 C.  48 ω  D.  64 ω

 

Q48. The resistance of a few metres of wire
conductor in closed electrical circuit is
(a) practically zero (b) low
 A.  practically zero  B.  low
 C.  high  D.  very high

 

Q49. Temperature co-efficient of resistance
is expressed in terms of
 A.  obms/°C  B.  mhos/ohm°C
 C.  ohms/ohm°C  D.  mhos/°C

 

Q50. Which of the following statements is correct regarding
resistance?
 A.  The resistance of a conductor is the hindrance by which the
conductor opposes the flow of current through it.
 B.  The resistance of wire is independent of the temperature for
most of the materials
 C.  The resistance of a wire does not depend upon its material.  D.  None of the above.

 

                       Part 1 Part 2 Part 3  Part 4   Part 5  Part 6  Part 7

ONLINE MCQ EE-RESISTANCE AND OHM`S LAW 6
CE ONLINE TEST-STRUCTURAL ANALYSIS PART 2

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