MCQ
Carbon resistors are of two types:
  • A
    Composition type resistor and film type resistor.
  • B
    Rheostat and film type resistor.
  • C
    Rheostat and variable resistor.
  • D
    Composition type resistor and rheostat.

Answer

  1. Composition type resistor and film type resistor.

Explanation:

Carbon resistors are of two types  composition type resistor and film type resistor.

There are a number of different types of fixed resistor:

Carbon composition: These types were once very common, but are now seldom used.

Carbon film: This resistor type is formed by "cracking" a hydrocarbon onto a ceramic former.

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

Similar questions

1 Pico farad =

The decay constant of a radioactive element is 1.5   per second. Its mean life in seconds will be

(a) 1.5  

(b) 4.62  

(c) 6.67  

(d) 10.35  

Einstein's photoelectric equation states that . In this equation  refers to

(a) Kinetic energy of all the emitted electrons

(b) Mean kinetic energy of the emitted electrons

(c) Maximum kinetic energy of the emitted electrons

(d) Minimum kinetic energy of the emitted electrons

In a charge free region, electric field lines can be taken to be continuous curves:

A point object is placed at the center of a glass sphere of radius 6 cm and refractive index 1.5. The distance of the virtual image from the surface of the sphere is

(a) 2 cm

(b) 4 cm

(c) 6 cm  

(d) 12 cm

Faraday's laws are consequence of conservation of

(a) Energy

(b) Energy and magnetic field

(c) Charge

(d) Magnetic field

A current carrying circular loop is freely suspended by a long thread. The plane of the loop will point in the direction

(a) Wherever left free

(b) North-south

(c) East-west

(d) At 45°  with the east-west direction

For which frequency of light, the human eye is most sensitive?

A cell of internal resistance 1.5Ω and of e.m.f. 1.5 volt balances 500 cm on a potentiometer wire. If a wire of 15 Ω  is connected between the balance point and the cell, then the balance point will shift

(a) To zero

(b) By 500 cm

(c) By 750 cm

(d) None of the above

The stopping potential as a function of the frequency of the incident radiation is plotted for two different photoelectric surfaces A and B. The graphs show that work function of A is

(a) Greater than that of B

(b) Smaller than that of B

(c) Equal to that of B

(d) No inference can be drawn about their work functions from the given graphs