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प्रश्न
Give one example to show how the resistance depends on the nature of material of the conductor.
उत्तर
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संबंधित प्रश्न
Find the expression for resistors connected in series.
Find the equivalent resistance between points A and B.
The diagram below shows part of a circuit:
If this arrangement of three resistors was to be replaced by a single resistor, its resistance should be:
(a) 9 Ω
(b) 4 Ω
(c) 6 Ω
(d) 18 Ω
What potential difference is needed to drive a current o f 1 A through a 5 Ω resistor?
State expression for Resistance connected in parallel.
You are provided with three resistors of resistance 1.0 Ω, 2.0 Ω and 3.0 Ω How would you connect them to obtain the total effective resistance 1.5 Ω? Draw diagram of the arrangement and check it by calculations.
Calculate the quantity of heat that will be produced in a coil of resistance 75 Ω if a current of 2A is passed through it for 2 minutes.
What is the maximum resistance which can be made using five resistors each of `1/5` W?
In an electrical circuit, two resistors of 2 Ω and 4 Ω respectively are connected in series to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be ______.
