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If 0.6 mol of electrons flows through a wire in 45 min , what are (a) the total charge that passes through the wire and ( b) the magnitude of the current ? If 0.6 mol of electrons flows through a wire in 45 min what are (a) the total charge that passes through the [...]

A hallow metallic sphere has inner radius a , outer radius b and resistivity rho . If a potential difference V is applied between the inner and outer surface . Find the A hallow metallic sphere has inner radius a outer radius b and resistivity rho . If a potential difference V is applied between [...]

The amount of energy released when 10^6 atoms of iodine in vapour state are converted to I- ions is 4.9 * 10^13 J. What will be electron affinity of iodine in eV per atom The amount of energy released when 10^6 atoms of iodine in vapour state are converted to I- ions is 4.9 * [...]

The correct order of electron affinity of B, C , N, O is (a) O > C > N > B (b) B > N > C O (c) O > C > B > N C n O is (a) O > C > N > B (b) B > N > C O [...]

The electron affinity for the inert gases is (a) Zero (b) High (c) Negative (d) Positive The electron affinity for the inert gases is (a) Zero (b) High (c) Negative (d) Positive November 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The current in a wire varies with time according to the equation I = 4+2 t, where I is in ampere and t is in second. The quantity of charge which has to be passed through a cross-section of the wire during the time t = 2 s to t = 6 s is? The [...]

The electron affinity values (in kJ/mol) of three halogens X,Y and Z are respectively -349, -333 and -325. Then X, Y and Z are respectively -333 and -325. Then X The electron affinity values (in kJ/mol) of three halogens X Y and Z are respectively Y and Z are respectively -349 November 10, 2020 Category: [...]

The element with positive electron gain enthalpy is (a) Hydrogen (b) Sodium (c) Oxygen (d) Fluorine (e) Neon The element with positive electron gain enthalpy is (a) Hydrogen (b) Sodium (c) Oxygen (d) Fluorine (e) Neon November 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Figure shwos a conductor of length l having a circular cross section . The radius of cross section varies linearly from a to b . The resistivity of the material is rho. Assuming that b-a << l . find the resistance of the conductor. How many electrons per second pass through a section of wire [...]

A wire has a resistance R . what will be its resistance if (a) it is doubled on itself (b) it is stretched so that (i) its length is doubled and ( ii) its radius is halved. A wire has a resistance R . what will be its resistance if (a) it is doubled on [...]