Three 6 ohm resistors are connected to form a triangle. What is the resistance between any two corners ___________?

Related Mcqs:

1. Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be_________________?

   A. 9 times
   B. 1/9 times
   C. 1/3 times
   D. 3 times

2. Four wires of same material, the same cross-sectional area and the same length when connected in parallel give a resistance of 25 Q. If the same four wires are connected is series the effective resistance will be________?

   A. 100 Ω
   B. 200 Ω
   C. 300 Ω
   D. 400 Ω

3. If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes______________?

   A. 0.4 ohm
   B. 0.6 ohm
   C. 0.8 ohm
   D. 1.0 ohm

4. Two resistors are said to be connected in series when___________?

   A. same current passes in turn through both
   B. both carry the same value of current
   C. total current equals the sum of branch currents
   D. sum of IR drops equals the applied e.m.f.

5. International ohm is defined in terms of the resistance of________________?

   A. a column of mercury
   B. a cube of carbon
   C. a cube of copper
   D. the unit length of wire

6. The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other ?

   A. 18 Q
   B. 36 Q
   C. 48 Q
   D. 64 Q

7. Copper wire of certain length and resistance is drawn out to three times its length without change in volume, the new resistance of wire becomes__________?

   A. 1/9 times
   B. 3 times
   C. 9 times
   D. unchanged

8.  If P is the power of a star connected system then what will be power of an equivalent delta connected system?

   A. P
   B. 3P
   C. P/3
   D. None of the above

   Updated by: muhammad rahim

9. Ohm’s law is not applicable to__________?

   A. semi-conductors
   B. D. C. circuits
   C. small resistors
   D. high currents

10. The condition for the validity under Ohm’s law is that_______________?

    A. resistance must be uniform
    B. current should be proportional to the size of the resistance
    C. resistance must be wire wound type
    D. temperature at positive end should be more than the temperature at negative end