| 1. | Bulbs in street lighting are all connected in ? | |
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parallel
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series
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series-parallel
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end-to-end
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Report Question| 2. | It becomes more difficult to remove ? | |
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any electron from the orbit
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first electron from the orbit
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second electron from the orbit
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third electron from the orbit
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| 3. | ln a series circuit with unequal resistances ? | |
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the highest resistance has the-most of the current through it
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the lowest resistance bas the highest voltage drop
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the lowest resistance has the highest current
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the highest resistance has the highest voltage drop
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| 4. | Two resistors are said to be connected in series when ? | |
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same current passes in turn through both
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both carry the same value of current
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total current equals the sum of branch currents
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sum of IR drops equals the applied e.m.f.
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| 5. | Specific resistance of a substance is measured in ? | |
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?/m
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?/m²
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?-m
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m/?
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| 6. | When one leg of parallel circuit is opened out the total current will ? | |
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reduce
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increase
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decrease
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become zero
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| 7. | Conductance : mho : : ? | |
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resistance : ohm
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capacitance: henry
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inductance : farad
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lumen : steradian
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| 8. | ln an electric kettle water boils in 10 minutes. It is required to boil the boiler in 5 minutes, using same supply mains ? | |
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length of heating element should be decreased
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length of heating element should be increased
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length of heating element has no effect on heating if water
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none of the above
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| 9. | Varistors are ? | |
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insulators
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non-linear resistors
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carbon resistors
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resistors with zero temperature coefficient
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| 10. | Voltage dependent resistors are used ? | |
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for inductive circuits
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to suppress surges
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as heating elements
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as current stabilizers
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