Which quantity should be measured by the voltmeter ?

Related Mcqs:

1. On which of the following voltage range settings will a voltmeter present the minimum load on a circuit?

   A. 1 V
   B. 50 V
   C. 500 V
   D. 1,000 V

2. The internal resistance of a 20,000 ohm/volt voltmeter set on its 5 V range is_____________?

   A. 20,000 Ω
   B. 100,000 Ω
   C. 200,000 Ω
   D. 1,000,000 Ω

3. When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read_____________?

   A. twice the source voltage
   B. half the source voltage
   C. zero volts
   D. the same as the source voltage

4. Which quantity consists of a unit 1KWh ?

   A. Energy
   B. Time
   C. Power
   D. Charge

5. Electric intensity being a vector quantity always points_______________?

   A. along the direction of force experienced by a unit positive charge
   B. opposite to the direction of force experienced by a unit positive charge
   C. perpendicular to the direction of force experienced by a uit positive charge
   D. any of above

6. Instantaneous power in inductor is proportional to the

   A. product of the instantaneous current and rate of change of current.
   B. square of instantaneous current.
   C. square of the rate of change of current.
   D. Temperature of the inductor.

7. The unit of resistivity is

   A. Ω.
   B. Ω – metre.
   C. Ω / metre.
   D. Ω / m².

8. Which of the following are the passive elements?

   A. Resistor
   B. Bulb
   C. Both
   D. None of these.

9. Power dissipation in ideal inductor is

   A. Maximum
   B. Minimum
   C. Zero
   D. A finite value

10. Which of the following has no units?

    A. Permeability
    B. Moment of a magnet
    C. Magnetic susceptibility
    D. Permittivity