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प्रश्न
Give the law of combination of resistances in series.
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उत्तर
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संबंधित प्रश्न
Find the expression for the resistors connected in series and write the two characteristics of it. (Draw figure).
Complete the following :-
(a)
Find the equivalent resistance between A and B
Name the material which is the best conductor of electricity.
How does the resistance of a wire change when:
its diameter is tripled?
V = IRTwo resistances X and Y are connected turn by turn : (i) in parallel, and (ii) series. In which case the resultant resistance will be less than either of the individual resistances?R = R1+ R2+ R3
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:
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(d) 18 Ω
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If three resistors 2 ohms, 3 ohms and 4 ohms are connected in series, then the effective resistance in the circuit will be _______ ohms.
Write an expression for the resistance of a conducting wire in terms of its length and area of cross-section.
State and explain the laws of resistance.
Calculate the equivalent resistance between P and Q from the following diagram:
2Ω resistor A, 1Ω resistor B and 4Ω resistor C are connected in parallel. The combination is connected across a 2V battery of negligible resistance. Draw the diagram of the arrangement and calculate:
(i) The current in each resistor A and C,
(ii) The current through battery.
Two resistors having 2Ω and 3Ω resistance are connected—(i) in series, and (ii) in parallel. Find the equivalent resistance in each case.
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What is the maximum resistance which can be made using five resistors each of `1/5` W?
Consider the following combinations of resistors:
The combinations having equivalent resistance 1 Q is/are ______.
