- AIndicate the type of the circuit in which they are to be used.
- BIdentify whether they are ohmic or non-ohmic.
- CDetermine their values in ohm.
- DDetermine whether they are wire wound or composition resistors.
Explanation:
Components and wires are coded with colors to identify their value and function. The colors brown, red, green, blue, and violet are used as tolerance codes on 5-band resistors only.
So,Resistors are generally colour coded to determine their values in ohm.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

The slope of plate characteristic of a vacuum tube diode for certain operating point on the curve is
The plate resistance of the diode and its nature respectively
|
(a) 100 kilo-ohms static |
(b) 1000 kilo-ohms static |
|
(c) 1000 kilo-ohms dynamic |
(d) 100 kilo-ohms dynamic |
Which of the following electromagnetic waves have minimum frequency
|
(a) Microwaves |
(b) Audible waves |
(c) Ultrasonic waves |
(d) Radiowaves |
A transformer has 100 turns in the primary coil and carries 8 A current. If input power is one kilowatt, the number of turns required in the secondary coil to have 500V output will be
|
(a) 100 |
(b) 200 |
(c) 400 |
(d) 300 |
In Thomson's experiment if the value of q/m is the same for all positive ions striking the photographic plate, then the trace would be
|
(a) Straight line |
(b) Parabolic |
(c) Circular |
(d) Elliptical |
Cathode rays travelling from east to west enter into region of electric field directed towards north to south in the plane of paper. The deflection of cathode rays is towards
|
(a) East |
(b) South |
(c) West |
(d) North |
Assuming that universe is expanding, if the spectrum of light coming from a star which is going away from earth is tested, then in the wavelength of light
|
(a) There will be no change |
|
(b) The spectrum will move to infrared region |
|
(c) The spectrum will seems to shift to ultraviolet side |
|
(d) None of the above |