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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


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

  4. A.

     Resistance

    B.

     Inductance

    C.

     Capacitance

    D.

     Impedance


  5. Electric current passing through the circuit produces

  6. A.

     Magnetic effect

    B.

     Luminous effect

    C.

     Thermal effect

    D.

     Chemical effect


  7. One Newton meter is same as

  8. A.

     One watt

    B.

     One joule

    C.

     Five joules

    D.

     One joule second


  9. The filament of an electric bulb is made of

  10. A.

     Carbon

    B.

     Aluminium

    C.

     Tungsten

    D.

     Nickel


  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


  13. Varistors are

  14. A.

     Insulators

    B.

     Nonlinear resistors

    C.

     Carbon resistors

    D.

     Resistors with zero temperature coefficients


  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