Will the drift velocity of electrons change if the diameter of a connecting wire is halved?
The element of the heater is very hot while the wire carrying current is not. Why?
Is there any difference between resistance of a wire and resistivity of a wire?
You are given n wires, each pf resistance r. What is the ratio of maximum to minimum resistance obtainable from these wires?
Two wires, one of copper and another of iron, have the same diameter and can carry the same current. In which wire the drift velocity of electrons will be more?
What is the difference between the fuse wire and the heating wire?
A wire is stretched to double its length. What will happen to its resistivity and resistance?
What happens to the current through R1 when R2 is removed from the circuit given below.
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