A wire of resistance R has it length and cross-section both doubled. Its resistance will become

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A wire of resistance R has it length and cross-section both doubled. Its resistance will become R.

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A wire of uniform area of cross-section A length L and resistance R is cut into two parts. Resistivity of each part a. remains the same b. is doubled c. is halved d. becomes zero

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A wire of resistance `4 Omega` is stretched to twice its original length. In the process of stretching, its area of cross-section gets halved. Now, th

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Calculate the conductivity of a wire of length 2 m, area of cross-sectionl `2 cm^(2)` and resistance `10^(-4) Omega`.

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Two wire of the same meta have same length, but their cross-sections are in the rati `3:1` . They are joined in series. The resistance of thicker wire

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A wire is being used as a replacement having twice the length and one-half the cross-sectional area of the original wire. The resistance of this new wire, when compared to that of the original wire, is _____________. A. four times as great B. twice as much C. the same as the original resistance D. one-half of the original resistance

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A replacement wire having twice the length and one-half the cross-sectional area of the original wire will have a resistance that is _____________. A. four times that of the original wire B. twice that of the original wire C. the same as that of the original wire D. one-half that of the original wire

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The resistance of a conductor is inversely proportional to its - (1) temperature (2) resistivity (3) area of cross section (4) length

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AB is a potentiometer wire of length 100 cm and its resistance is `10Omega`. It is connected in series with a resistance R = 40 `Omega` and a battery

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If a wire of resistance R is melted and recast to half of its length, then the new resistance of the wire will be - (1) R/4 (2) R/2 (3) R (4) 2R

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If a wire of resistance R is melted and recast to half of its length, then the new resistance of the wire will be

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How does the resistance of the conductor depend on the length and cross section of the conductor ?

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A metel rod of the length 10cm and a rectangular cross-section of 1 cm xx `1//2` cm is connected to a battery across opposite faces. The resistance wi

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A potentiometer wire of length `100 cm` having a resistance of `10 Omega` is connected in series with a resistance `R` and a cell of emf `2V` of negli

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`AB` is a wire of uniform resistance. The galvanometer `G` shows no deflection when the length `AC = 20 cm` and `CB = 80 cm`. The resistance `R` is eq

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If a copper wire is increased to double its length, its resistance will become – (1) four times (2) one-fourth (3) double (4) half

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If a copper wire is increased to double its length, its resistance will become (1) four times (2) one–fourth (3) double (4) half

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When both the inductance and resistance of a coil are doubled the value of?

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If the length of the shank is doubled, then strain energy absorbed by shank a) Doubles b) Remains same c) Increases 4 time d) Become half

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The resistivity of a potentiometer wire is `40xx10^(-8)Omega-m` and its area of cross section is `8xx10^(-6)m^(2)`. If 0.2 A current is flowing throug

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The load shared by each spring is inversely proportional to the cross section of wire. a) Yes b) No, it is directly proportional c) It is proportional to its square d) It is proportional to its square root

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What is the stress in a wire which is 50m long and 0.01cm^2 in cross section, if the wire bears a load of 100kg?

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A wire of 50 cm long, `1mm^(2)` in cross-section carries a current of 4 A, when connected to a 2 V battery, the resistivity of wire is

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lt the length, number of turns and area of a coil are doubled, the inductance of the coil

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How can I wire a doubled up Potentiometer to cut two different frequencies?

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Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose (A) One end is fixed and other end is hinged (B) Both ends are hinged or pin jointed (C) One end is fixed and the other end entirely free (D) Both the ends are fixed

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Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose (a) One end is fixed and other end is hinged (b) Both ends are hinged or pin jointed (c) One end is fixed and the other end entirely free (d) Both the ends are fixed

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If depth of a beam is doubled then changes in its section modulus a. Will remain same b. Will decrease c. Will be doubled d. Will increase by 4 times

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Calculate the work done in stretching a steel wire of length 2m and cross sectional area 0.0225 mm^2

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A current of 2 A is flowing through a wire of length 4 m and cross-sectional area `1 mm^(2)`. If each cubic metre of the wire contains `10^(29)` free

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A simply supported beam is of rectangular section.It carries a uniformly distributed load over the whole span.The deflection at the centre is y.If the depth of beam is doubled ,the deflection at the centre would be a.2y b.4y c.y/2 d.y/8.

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