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प्रश्न
State the order of specific resistance of an insulator.
उत्तर
Insulator of the order of 108 Ωm.
संबंधित प्रश्न
For which of the following substance, resistance decreases with increase in temperature?
How does (a) resistance, and (b) specific resistance of a wire depend on its (i) length, and (ii) radius?
What is the S.I unit of electrical conductivity?
Define electrical conductivity.
The electrical resistance of insulators is ____________.
What is the maximum resistance which can be made using five resistors each of 1/5 Ω?
Three 2 Ω resistors, A, B and C, are connected as shown in Figure. Each of them dissipates energy and can withstand a maximum power of 18 W without melting. Find the maximum current that can flow through the three resistors?
What is electrical resistivity? In a series electrical circuit comprising a resistor made up of a metallic wire, the ammeter reads 5 A. The reading of the ammeter decreases to half when the length of the wire is doubled. Why?
The S.I unit of resistance is ______.
The specific resistance of a conductor depends on its ______.
