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प्रश्न
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उत्तर
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संबंधित प्रश्न
The circuit diagram given below shows the combination of three resistors R1, R2 and R3:
Find :
(i) total resistance of the circuit.
(ii) total current flowing in the circuit.
(iii) the potential difference across R1.
Which type of circuit, series or parallel, is preferred while connecting a large number of bulbs:
(a) for decorating a hotel building from outside?
If you were going to connect two light bulbs to one battery, would you use a series or a parallel arrangement? Why? Which arrangement takes more current from the battery?
If the current passing through a conductor is doubled, what will be the change in heat produced
State two differences between the e.m.f and terminal voltage of a cell.
Match the pairs.
| ‘A’ Group | ‘B’ Group |
| 1. Free electrons | a. V/R |
| 2. Current | b. Increases the resistance in the circuit |
| 3. Resistivity | c. Weakly attached |
| 4. Resistances in series | d. VA/LI |
Find the effective resistance in the following circuit diagrams (Fig.):
How is direction of current related to the direction of flow of electrons?
Problems for practice:
If 3A current flows through a circuit, then convert the current in terms of a milliampere.
