In 15A wiring the copper wire used is thicker as compared to 5A wiring.
Is this statement true.

Why are copper wires used as connecting wires?

Which metals are used to make wires ?

The strength of magnetic field gets halved if the current flowing in a circular current carrying wire is doubled. Is this statement true.

Why copper is used to make connecting wires ?

Direction. In the follwing questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as (A). If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if asssertion is true, but reason if false, (D) if both assertion and reason are false Assertion : Copper wires are used as the connecting wires in an electical circuit, as its resisitvity is low and condutivity is high. Reason: Copper can be easily drawn into wires

An electric cable of copper has just one wire of radius 9mm. Its resistance is 5ohm. This single copper wire of the cable is replaced by 6 different well insulated copper wires each of radius 3mm. The total resistance of the cable will now be equal to