Download App

Current Electricity — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsCurrent Electricity1 Mark
MCQ
Identify the wrong statement describing the color code for carbon resistors.
  • A
    The first band indicates the first significant figure.
  • B
    The second band indicates the second significant figure.
  • C
    The third band indicates the third significant figure.
  • D
    The fourth band indicates the possible variation in the percent of the indicated value.
✓

Answer

  1. The third band indicates the third significant figure.

Explanation:

The third band indicates the power of ten with which the first and second significant figures must be multiplied to get the resistance value in 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 (1 Marks)" from Current Electricity→Current Electricity — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Continuous spectrum is not due to

(a) Hydrogen flame

(b) Electric bulb

(c) Kerosene oil lamp flame

(d) Candle flame
→
A particle moves in a circular path with a continuously increasing speed. Its motion is:
  1. Periodic.
  2. Oscillatory.
  3. Simple harmonic.
  4. None of them.
→

A point charge +q  is placed at the centre of a cube of side L. The electric flux emerging from the cube is

(a)  

(b) Zero

(c)

(d)

→

In the circuit element given here, if the potential at point B, VB = 0, then the potentials of A and D are given as

(a)  

(b)  

(c)        

(d)  
→
On increasing the temperature, width of forbidden gap __________ .
→
Ampere’s circuital law is equivalent to:
→

The half-life period of radium is 1600 years. Its average life time will be

(a) 3200 years

(b) 4800 years

(c) 2319 years

(d) 4217 years
→
A charge q is placed at the centre of the open end of a cylindrical vessel (figure). The flux of the electric field through the surface of the vessel is:

→

Seven resistances are connected as shown in the figure.  The equivalent resistance between A and B is

(a) 3 W

(b) 4 W

(c) 4.5 W 

(d) 5 W
→

X-rays are produced due to

(a) Break up of molecules          

 (b) Changing in atomic energy level
(c) Changing in nuclear energy level

 (d) Radioactive disintegration
→