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A coil of wire has a resistance of 25 .00 ohm at 20 degree C and a resistance of 25.17 ohm at 35 degree C . what is its temperature coefficient of resistance ?
10
Nov
A coil of wire has a resistance of 25 .00 ohm at 20 degree C and a resistance of 25.17 ohm at 35 degree C . what is its temperature coefficient of resistance ? A coil of wire has a resistance of 25 .00 ohm at 20 degree C and a resistance of 25.17 ohm [...]
A metal wire of diameter 2 mm and of length 300 m has a resistance of 1.6424 ohm at 20 degree and 2..415 ohm at 150 degree at 150 degree . Find the values of alpha , R0 and rho0, where the zero subscript refers to 0 degree C , and rho 20 degree c. Identify the metal.
10
Nov
A metal wire of diameter 2 mm and of length 300 m has a resistance of 1.6424 ohm at 20 degree and 2..415 ohm at 150 degree at 150 degree . Find the values of alpha , R0 and rho0, where the zero subscript refers to 0 degree C , and rho 20 degree c. [...]
What is the drift speed of the conduction electrons in a coopper wire with radius r 900 um when it has a uniform current I = 17mA? Assume that each copper atom contributes one conduction electron to the current and the current density is uniform across the wire’s cross section.
10
Nov
What is the drift speed of the conduction electrons in a coopper wire with radius r 900 um when it has a uniform current I = 17mA? Assume that each copper atom contributes one conduction electron to the current and the current density is uniform across the wire’s cross section. How many electrons per second [...]
In Young’s double slit experiment, the source is white light. One silt is covered with red filter and other with blue filter. There shall be
10
Nov
In Young’s double slit experiment, the source is white light. One silt is covered with red filter and other with blue filter. There shall be In Young's double slit experiment the source is white light. One silt is covered with red filter and other with blue filter. There shall be November 10, 2020 Category: Chapter [...]
The solubilities of carbonates decreases down the magnesium group due to a decrease in (a) Lattice energies of solids (b) Hydration energies of cations (c) Inter-ionic attraction
10
Nov
The solubilities of carbonates decreases down the magnesium group due to a decrease in (a) Lattice energies of solids (b) Hydration energies of cations (c) Inter-ionic attraction The solubilities of carbonates decreases down the magnesium group due to a decrease in (a) Lattice energies of solids (b) Hydration energies of cations (c) Inter-ionic attraction November [...]
In Young’s double slit expt. the distance between two sources is 0.1 mm. The distance of the screen from the source is 20 cm. Wavelength of light used is 5460 A^o . The angular position of the first dark fringe is
10
Nov
In Young’s double slit expt. the distance between two sources is 0.1 mm. The distance of the screen from the source is 20 cm. Wavelength of light used is 5460 A^o . The angular position of the first dark fringe is Two coherent monochromatic light beams of intensities 2I and 8I respectively are superposed. The [...]
Which of the following is a false statement (a) Fluorine is more electronegative than chlorine (b) Nitrogen has greater IE1 than oxygen (c) Lithium is amphoteric
10
Nov
Which of the following is a false statement (a) Fluorine is more electronegative than chlorine (b) Nitrogen has greater IE1 than oxygen (c) Lithium is amphoteric Which of the following is a false statement (a) Fluorine is more electronegative than chlorine (b) Nitrogen has greater IE1 than oxygen (c) Lithium is amphoteric November 10, 2020 [...]
In a certain double slit experimental arrangement interference fringes of width 1.0mm each are observed when light of wavelength 5000Å is used. Keeping the set up unaltered, if the source is replaced by another source of wavelength 6000Å, the fringe width will be
10
Nov
In a certain double slit experimental arrangement interference fringes of width 1.0mm each are observed when light of wavelength 5000Å is used. Keeping the set up unaltered, if the source is replaced by another source of wavelength 6000Å, the fringe width will be if the source is replaced by another source of wavelength 6000Å In [...]
The most polar bond is (a) O-F (b) N-Cl (c) N-F (d) N-N
10
Nov
The most polar bond is (a) O-F (b) N-Cl (c) N-F (d) N-N The most polar bond is (a) O-F (b) N-Cl (c) N-F (d) N-N November 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
1 (a) a steady current flows in a metallic conductor of non- uniform cross section . state which of the quantites i.e. current , current density , electric field , and drift velocity remain constant ? (b) A steady current passes through a cylindrical . Is there an electric field inside the conductor ?
10
Nov
1 (a) a steady current flows in a metallic conductor of non- uniform cross section . state which of the quantites i.e. current , current density , electric field , and drift velocity remain constant ? (b) A steady current passes through a cylindrical . Is there an electric field inside the conductor ? 1 [...]
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1 (a) a steady current flows in a metallic conductor of non- uniform cross section . state which of the quantites i.e. current ,
and drift velocity remain constant ? (b) A steady current passes through a cylindrical . Is there an electric field inside the conductor ? ,
current density ,
electric field ,