| 1. | Consider the following statements and choose the correct one ? | |
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When two or more resistances are connected end to end consecutively, they are said to be connected in series.
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The combined resistance of any number of resistance connected in series is equal to the sum of the individual resistances.
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When two or more resistances are connected between the same two points, they are said to be connected in parallel.
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All the above.
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Report Question| 2. | A positive charge released from rest ? | |
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Moves towards the regions of equal potential
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Moves towards the regions of lower potential
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Moves towards the regions of higher potential
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Does not move
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| 3. | An battery is used to ? | |
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Safeguard against short - circuit
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Measure electric potential
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Measure electric current
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Maintain a potential difference
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| 4. | The resistivity of a wire depends on ? | |
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Material
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Length
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Length, material and area of cross section
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Area of cross section
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| 5. | An electric bulb is connected to a 220V generator. The current is 0.50 A. What is the power of the bulb ? | |
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0.0023 W
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55 W
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110 W
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440 W
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| 6. | What is the commercial unit of electrical energy ? | |
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Kilowatt-hour
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Kilojoules
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Watt-hour
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Joules
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| 7. | A boy records that 4000 joule of work is required to transfer 10 coulomb of charge between two points of a resistor of 50 ohm. The current passing through it is ? | |
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16 A
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8 A
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4 A
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2 A
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| 8. | At the time of short circuit, the electric current in the circuit ? | |
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increases heavily
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reduces substantially
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vary continuously
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does not change
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| 9. | The work done in moving a unit positive charge across two points in an electric circuit is a measure of ? | |
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Power
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Resistance
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Potential difference
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Current
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| 10. | Which of the following gases are filled in electric bulbs ? | |
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Argon and Hydrogen
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Argon and Nitrogen
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Neon and Argon
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Helium and Neon
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