Find the resistance of a hollow cylindrical conductor of length 1.0m and inner and outer radii 1.0mm and 2.0mm respectively. The resistivity of the material is `2.0xx10^(-8)(Omega)m`.
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A hollow spherical conductor of radius R has a charge Q on it. A small dent on the surface decreases the volume of the spherical conductor by 2%. Assu
Correct Answer - (a) `(1)/(150)` (b) 0.67 %
2 Answers 1 views
A cylindrical conductor has a resistance R. When the conductor is at a temperature `(T)` above its surrounding temperature `(T_0)`, the ratio of therm
Correct Answer - (i) `T=T_(0)+(V^(2))/(kR)(1-e^(-(kt)/(ms)))` (ii) `T=T_(0)+(V^(2))/(kR)`
2 Answers 2 views
A long cylindrical conductor of radius a contains a long cylindrical holr of radius l. The axes of the two cylinders are parallel and are at a distanc
Correct Answer - `(mu_(0)id)/(2pi(a^(2)-b^(2))`
2 Answers 1 views
Inside a cylindrical capacitor of inner radius a and outer radius b, an electron is projected from the surface of inner cylindrical shell perpendicula
Correct Answer - `[(eB (b^(2) - a^(2)))/(2 mb)]`
2 Answers 6 views
A long straight cylindrical hollow pipe has inner and outer radii 1 cm and 2 cm respectively. It carries a current 100 A. Calculate the magnetic field
Correct Answer - [(a) 0 (b) `5.56 xx 10^(-4)T` (c) `5 xx 10^(-4)T`]
2 Answers 1 views
A hollow spherical conductor of radius 10 m cm is surrounded concentrically by another bigger shell of radius 12 cm and thickness 1 cm The inner one i
Correct Answer - `(i)3510 (ii)3285 V,(iii)585 V`
2 Answers 2 views
Find the capacitance of unit length of a cylindrical capacitor which has conductor of radii 2.5 mm and 4.5 mm, respectively and the dielectric consist
Correct Answer - `0.442xx10^(-9)`F
2 Answers 1 views
A straight conductor of area of cross-section S and resistivity `rho` is connected to a ballistic galvometer. The conductor is moved with speed v and
Correct Answer - `(e)/(m)=(Sv)/(rhoq)`
2 Answers 1 views
A wire of resistance `10 Omega` is drawn out so that its length is thrice its original length. Calculate its new resistance (resistivity and density o
Correct Answer - `90 Omega`
2 Answers 1 views
If the difference between the outer radius and the inner radius of a ring is 14 cm, then what is the difference between is outer circumference and inn
Correct Answer - 88 cm
2 Answers 1 views