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प्रश्न
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उत्तर
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संबंधित प्रश्न
In series combination which remains constant?
(a) Voltage
(b) Current
(c) Both current and voltage
(d) Both are variables
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
Choose the correct alternative and rewrite the following sentence.
If three resistors 2 ohms, 3 ohms and 4 ohms are connected in series, then the effective resistance in the circuit will be _______ ohms.
Define the term resistivity and state its S.I. unit. Which will have higher resistivity a conductor or an insulator.
State a relation between electrical power, resistance and potential difference in an electrical circuit.
Calculate the equivalent resistance between the points A and B for the following combination of resistors:
In the circuit shown below, calculate the equivalent resistance between the points (i) A and B, (ii) C and D.
With the help of a circuit diagram derive the formula for the resultant resistance of three resistances connected:
- in series and
- in parallel
