A steady current flows in a metallic conductor of non- uniform cross – section. The quantity constant along the length of the conductor is /are
Sahay Sir > Question Answers > A steady current flows in a metallic conductor of non- uniform cross - section. The quantity constant along the length of the conductor is /are
An ionization chamber with parallel conducting plates as anode and cathode has 5×10^7 electrons and the same number of singly-charged positive ions per cm^2. The electrons are moving at 0.4 m/s. The current density from anode to cathode is 4 μA/ m^2. The velocity of positive ions moving towards cathode is
19
Sep
An ionization chamber with parallel conducting plates as anode and cathode has 5×10^7 electrons and the same number of singly-charged positive ions per cm^2. The electrons are moving at 0.4 m/s. The current density from anode to cathode is 4 μA/ m^2. The velocity of positive ions moving towards cathode is A steady current flows [...]
Two resistance R1 and R2 are made of different material. The temperature coefficient of the material of R1 is α and of the material of R2 is −β. Then resistance of the series combination of R1 and R2 will not change with temperature, if R1/ R2 will not change with temperature if R1 / R2 equals
19
Sep
Two resistance R1 and R2 are made of different material. The temperature coefficient of the material of R1 is α and of the material of R2 is −β. Then resistance of the series combination of R1 and R2 will not change with temperature, if R1/ R2 will not change with temperature if R1 / R2 [...]
A common flashlight bulb is rated 0.30 A and 2.7 V (the values of the current and voltage under operating conditions.) If the resistance of the tungsten bulb filament at room temperature 20∘ C is 1.0 Ω and its temperature coefficient of resistivity is 4.0 × 10^−3 C^−1, then find the temperature in centigrade of the filament when the bulb is on. (Consider the variation of resistance to be linear with temperature.)
19
Sep
A common flashlight bulb is rated 0.30 A and 2.7 V (the values of the current and voltage under operating conditions.) If the resistance of the tungsten bulb filament at room temperature 20∘ C is 1.0 Ω and its temperature coefficient of resistivity is 4.0 × 10^−3 C^−1, then find the temperature in centigrade of [...]
A cylindrical solid of length L and radius a is connected across a source of emf V and negligible internal resistance shown in figure. The resistivity of the rod at point P at a distance x from left end is given by ρ = bx ( where b is a positive constant ). Find the electric field at point P.
19
Sep
A cylindrical solid of length L and radius a is connected across a source of emf V and negligible internal resistance shown in figure. The resistivity of the rod at point P at a distance x from left end is given by ρ = bx ( where b is a positive constant ). Find the [...]
A current I is passing through a wire having two sections P and O of uniform diameters d and d/2 respectively. If the mean drift velocity of electrons in section P and Q is denoted by vP and vQ respectively, then
19
Sep
A current I is passing through a wire having two sections P and O of uniform diameters d and d/2 respectively. If the mean drift velocity of electrons in section P and Q is denoted by vP and vQ respectively, then A steady current flows in a metallic conductor of non- uniform cross - section. [...]
A steady current flows in a metallic conductor of non- uniform cross – section. The quantity constant along the length of the conductor is /are
19
Sep
A steady current flows in a metallic conductor of non- uniform cross – section. The quantity constant along the length of the conductor is /are A steady current flows in a metallic conductor of non- uniform cross - section. The quantity constant along the length of the conductor is /are September 19, 2020 Category: Uncategorised [...]