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EEE :: Current Electricity

  1. An open resistor, when checked with an ohmmeter reads

  2. A.

     Zero

    B.

     Infinite

    C.

     High but within tolerance

    D.

     Low but not zero

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  3. Sparking occurs when a load is switched off because the circuit has high

  4. A.

     Resistance

    B.

     Inductance

    C.

     Capacitance

    D.

     Impedance

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  5. Electric current passing through the circuit produces

  6. A.

     Magnetic effect

    B.

     Luminous effect

    C.

     Thermal effect

    D.

     Chemical effect

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  7. One Newton meter is same as

  8. A.

     One watt

    B.

     One joule

    C.

     Five joules

    D.

     One joule second

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  9. The filament of an electric bulb is made of

  10. A.

     Carbon

    B.

     Aluminium

    C.

     Tungsten

    D.

     Nickel

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  11. Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current.

  12. A.

     Reactor

    B.

     Capacitor

    C.

     Inductor

    D.

     Resistor

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  13. Varistors are

  14. A.

     Insulators

    B.

     Nonlinear resistors

    C.

     Carbon resistors

    D.

     Resistors with zero temperature coefficients

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  15. Temperature coefficient of resistance is expressed in terms of

  16. A.

     ohms/°C

    B.

     mhos/ohm°C

    C.

     ohms/ohm°C

    D.

     mhos/°C

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