Advertisements
Advertisements
प्रश्न
Two resistors of resistance 2 Ω and 4 Ω when connected to a battery will have
पर्याय
same current flowing through them when connected in parallel
same current flowing through them when connected in series
same potential difference across them when connected in series
different potential difference across them when connected in parallel
उत्तर
same current flowing through them when connected in series
Explanation -
When two resistors are connected in series with a battery then current passing through them is same.
APPEARS IN
संबंधित प्रश्न
Write an expression connecting the resistance of a wire and specific resistance of its material. State the meaning of symbols used.
Two wires A and B are made of copper. The wire A is long and thin, while the wire B is short and thick. Which will have more specific resistance?
Distinguish between the resistivity and conductivity of a conductor.
The electrical resistance of insulators is ____________.
What is the minimum 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?
Should the resistance of an ammeter be low or high? Give reason.
Write the relationship between electrical resistance and electrical resistivity for a metallic conductor of a cylindrical shape. Hence derive the SI unit of electrical resistivity.
The specific resistance of a conductor depends on its ______.
What length of copper wire of specific resistance 1.7 × 10-8 Ω m and radius 1 mm is required so that its resistance is 2 Ω?