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संबंधित प्रश्न
Find the equivalent resistance between points A and B
Name the material which is the best conductor of electricity.
What possible values of resultant resistance one can get by combining two resistances, one of value 2 ohm and the other 6 ohm?
What is (a) highest, and (b)Ω lowest, resistance which can be obtained by combining four resistors having the following resistances?
4 Ω, 8 Ω, 12 Ω, 24 Ω
Define the term resistivity and state its S.I. unit. Which will have higher resistivity a conductor or an insulator.
State expression for Cells connected in parallel.
What is a resistance? Define it with respect to Ohm’s law,
Illustrate-combination of cells e.g., three cells, in series, explaining the combination briefly. Obtain an expression for current ‘i’ in the combination.
What should be the length of a nickel wire of area of cross-section 3 mm2 used for making a rheostat of 750 ohm? (ρ of nickle = 0.069 Ohm mm2/m)
With the help of a circuit diagram derive the formula for the resultant resistance of three resistances connected:
- in series and
- in parallel
