FACTORS ON WHICH THE RESISTANCE OF A CONDUCTOR DEPENDS

The resistance of a conductor does NOT depend on which of the following factors ? A) Length B) Area of cross section C) Pressure D) Material

a) What is the resistance of a conductor? Mention the factors on which the resistance of a conductor depend. b) b) An electric bulb of 200 Omega draws a current of 1 ampere. Calculate the power of the bulb the potential difference at its ends and the energy in KWh consumed burning it for 5h.

a] Define electric resistance of a conductor. b] List the factors on which resistance of a conductor depends. c] Resistance of a metal wire of length 1 m is 104Omega" at "20^(@)C . If the diameter of the wire is 0.15 mm, find the resistivity of the metal at this temperature.

(a) Draw magnetic field lines of a bar magnet. "Two magnetic field lines never intersect each other." Why ? (b) An electric oven of 1.5 kW is operated in a dometic circuit (220V) that has a current rating of 5A. What result do you expect in this case ? Explain . or Which is meant by resistance of a conductor ? Name and define its SI units. List the factors on which the resistance of a conductor depends. How is the resistance of a wire affected if - (i) its length is doubled , (ii) its radius is doubled ?