Basic Electrical Engineering Quiz: Test!

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Ashish Desai
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  • 1/10 Questions

    What is the unit of current?

    • Ampere
    • Voltage
    • Meter
    • None of above
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About This Quiz

Test your knowledge in Basic Electrical Engineering with this engaging quiz! Explore fundamental concepts like current, resistivity, Ohm's Law, and electrical energy. Ideal for students and professionals looking to assess or reinforce their understanding of electrical principles.

Basic Electrical Engineering Quiz: Test! - Quiz

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  • 2. 

    The Curve representing Ohm's law is?

    • Linear

    • Hyperbolic

    • Parabolic

    • Triangular

    Correct Answer
    A. Linear
  • 3. 

    An electric heater draws 3.5 A from a 110 V source. The resistance of the heating elements is approximately? 

    • 31Ω

    • 3.1Ω

    • 385Ω

    • 38.5Ω

    Correct Answer
    A. 31Ω
    Explanation
    V=I*R
    R=V/I 
      =110/3.5
      =31Ω

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  • 4. 

    The SI unit of electrical energy is?

    • Watt-Second

    • Joule

    • KWh

    • Volt-Ampere Second

    Correct Answer
    A. Joule
    Explanation
    Joule is the SI Unit of Energy all others are the unit of Energy but not the SI Unit of energy.

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  • 5. 

    Active Element in the circuit is one which

    • Dissipates Energy

    • Receive Energy

    • Both receives and supplies

    • Supplies energy

    Correct Answer
    A. Supplies energy
    Explanation
    Definition :- Active elements in the circuit is one which supplies energy

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  • 6. 

    Which of the following materials possesses the least specific resistivity?

    • Aluminium

    • Copper

    • Silver

    • Iron

    • None of Above

    Correct Answer
    A. Silver
    Explanation
    The resistivity of silver is about 1.59 × 10−8 Ωm at 20 degrees Celsius.

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  • 7. 

    Four resistances 2Ω,4Ω,5Ω,20Ω

    • 1Ω

    • 2Ω

    • 4Ω

    • 5Ω

    Correct Answer
    A. 1Ω
    Explanation
    1/R=1/R1+1/R1 +1/R1+1/R1
          =1/2+1/4 +1/5+1/20
          =10+5+4+1/20
          =20/20
         =1Ω

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  • 8. 

    Two wires A and B of the same Material but of different lengths L and 2L have the radius r and 2r respectively. The ratio of specific resistance will be?

    • 1:4

    • 1:8

    • 1:1

    • 1:2

    Correct Answer
    A. 1:1
    Explanation
    As the materials are same (pA=pB) the ratio will be 1:1

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  • 9. 

    Electrical conductivity of metals is typically of the order of (in Ω-1*m-1)

    • 107

    • 105

    • 10-4

    • 10-6

    Correct Answer
    A. 107
    Explanation
    Metals have high electrical conductivity due to the presence of free electrons that can easily move through the material. The unit of electrical conductivity is Ω-1*m-1, which represents the ease with which electric current can flow through a material. A conductivity value of 107 Ω-1*m-1 indicates a very high conductivity, meaning that metals can conduct electricity very effectively.

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  • 10. 

    We have three resistances each of 1Ω,2Ω and 3Ω. If all the three resistances are to be connected in a circuit, how many different values of equivalent resistances are possible?

    • Five

    • Six

    • Seven

    • Eight

    Correct Answer
    A. Eight
    Explanation
    R1=1Ω,R2=1Ω R3=1Ω
    1) R1, R2, R3 in series
    2)R1, R2, R3 in parallel
    3)R1,in series with parallel combination R2 &R3 
    4)R2,in series with parallel combination R1 &R3 
    5)R3,in series with parallel combination R1 &R2
    6)R1,in parallel with series combination R2 &R3 
    7)R2,in parallel with series combination R1 &R3 
    8)R3,in parallel with series combination R2 &R1 
     

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  • Current Version
  • Apr 19, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 17, 2020
    Quiz Created by
    Ashish Desai
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