Is Ohm's law universally applicable for all condcuting elements? If not, give examples of elements which do not obey Ohm's law.

Is Ohm's law universally applicable for all conducting elements ? If not, give examples of elements which do not obey Ohm's law.

Answer the following questions: Is Ohm’s law universally applicable for all conducting elements? If not, give examples of elements which do not obey Ohm’s law.

Answer the following questions : (a) A steady current flows in a metallic conductor of non-uniform cross-section. Explain which of these quantities is constant along the conductor : current, current density, electric field and drift speed ? (b) Is Ohm's law universally applicable for all conducting elements ? If not, give examples of elements which do not obey Ohm's law. (c) A low voltage supply from which one needs high currents must have low internal resistance, why ? (d) A high tension (HT) supply of say 6 kV must have a very large internal resistance. why ?

Answer the following questions: (a) A steady current flows in a metallic conductor of non-uniform cross-section. Which of these quantities is constant along the conductor: current, current density electric field, drift speed ? (b) Is Ohm's law universally applicable for all cnducting elements ? If not, give examples of elements which do not obey Ohm's law. (c ) A low voltage suply from which one needs high currents must have very low internal resistance.Why (d) A high tension (HT) supply of say, 6kV must have a very large internal resistance, Why ?

Answer the following questions: (a) A steady current flows in a metallic conductor of non-uniform cross-section. Which of these quantities is constant along the conductor: current, current density electric field, drift speed ? (b) Is Ohm's law universally applicable for all cnducting elements ? If not, give examples of elements which do not obey Ohm's law. (c ) A low voltage suply from which one needs high currents must have very low internal resistance.Why (d) A high tension (HT) supply of say, 6kV must have a very large internal resistance, Why ?

Is Ohn's law universally applicable for all conducting elements? Write with examples.

Name two devices which do not obey Ohm.s law.