GIVE SCIENTIFIC REASONS
Connecting wires in a circuit are made of copper and aluminium.
ANSWER IN BRIEF
Resistors connected in Series
Find the expression for resistivity of a material.
P and Q are the two wires of same length and different cross sectional areas and made of same metal. Name the property which is same for both the wires and that which is different for both the wires.
Resistivity of some material is given below. which one will be the best conductor....
If the resistance of wire A is four times the resistance of wire B, find the ratio of their cross sectional areas.
Two dissimilar bulbs are connected in series, bulb will be brighter? (Hint: consider the resistance of the bulb).
Electrical symbols used in electrical circuits