MCQ
What is immaterial for an electric fuse wire
  • A
    Its specific resistance
  • B
    Its radius
  • Its length
  • D
    Current flowing through it

Answer

Correct option: C.
Its length
c
(c) Length is immaterial for an electric fuse wire.

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

Name the unit in which work function of a metal is generally expressed.
Which can pass through $20 \,cm$ thickness of the steel
A straight wire carrying a current of $14\,A$ is bent into a semicircular are of radius $2.2\,cm$ as shown in the figure. The magnetic field produced by the current at the centre $(O)$ of the arc. is $.........\,\times 10^{-4}\, T$
The direction of electric field created by a negative charge is $........$?
An electron has mass $9 \times {10^{ - 31}}\,kg$ and charge $1.6 \times {10^{ - 19}}C$ is moving with a velocity of ${10^6}\,m/s$, enters a region where magnetic field exists. If it describes a circle of radius $0.10\, m$, the intensity of magnetic field must be
Two coherent sources $S_1$ and $S_2$ are separated by a distance four times the wavelength $l$ of the source. The sources lie along $y$ axis whereas a detector moves along $+ \ x$ axis. Leaving the origin and far off points the number of points where maxima are observed is
Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of $30^o$ with each other. When suspended in a liquid of density $1\, g\, cm^{-3}$, the angle remains the same. If density of the material of the sphere is $4/3\, g\, cm^{-3}$, the dielectric constant of the liquid is
In the formation of primary rainbow, the sunlight rays emerge at minimum deviation from rain-drop after
The shape of wave front at a very large distance from source is $........$
What is the net force on a $Cl^{-}$ placed at the centre of the bcc structure of $CsCl$