Download App

Current Electricity — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsCurrent Electricity1 Mark
MCQ
Find the false statement.
  • A
    Wheatstone bridge is analogous to simple level system.
  • B
    A galvanometer with low resistance in series is an ammeter.
  • C
    Wheatstone bridge cannot be used forprecision measurement because of the error introduced in contact resistance.
  • D
    Wheatstone bridge is susceptible to high dc current.
✓

Answer

  1. Wheatstone bridge is susceptible to high dc current.

Explanation:

The false statement is Wheatstone bridge is susceptible to high dc current. It is actually not susceptible to high dc current and can give inaccurate readings if not balanced. The Wheatstone bridge measures resistance from few ohms tomega ohms.All the other statements are valid.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q [1M]" from Current Electricity→Current Electricity — all question types→Physics STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

 Which of the following proves that electromagnetic waves are transverse?
→

A given charge is situated at a certain distance from an electric dipole in the end-on position experiences a force F. If the distance of the charge is doubled, the force acting on the charge will be

(a) 2F       

(b) F / 2

(c) F / 4

(d) F / 8
→
If a charged particle is projected perpendicular to a uniform magnetic field, then:
  1. It revolves in circular path
  2. Its K.E. remains constant
  3. Its momentum remains constant
  4. Its path is spiral
    →
    In an n-type semiconductor, donor valence band is:
    →

    A compass needle will show which one of the following directions at the earth's magnetic pole

    (a) Vertical

    		 (b) No particular direction
    (c) Bent at 45° to the vertical

    		 (d) Horizontal
    →
    Conservation of electric charges means that the total charge of an isolated system remains ____ with time.
    →
    By increasing the temperature, the specific resistance of a conductor and a semiconductor:
    →

    The ratio of the largest to shortest wavelengths in Lyman series of hydrogen spectra is

    (a)  

    (b)

    (c)   

    (d)  
    →
    Two identical p-ri junctions may be connected in series with a battery in three ways (figure). The potential difference across the two p-n. junctions are equal in:
    1. Circuit 1 and circuit 2.
    2. Circuit 2 and circuit 3.
    3. Circuit 3 and circuit 1.
    4. Circuit 1 only.

    →

    When   transforms to , then the number of the emitted a- and b-particles is, respectively

    (a) 8α, 7β

    (b) 4α, 7β

    (c) 4 α, 4β

    (d) 4α, 1β

    →