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MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
- Ohm's law is not obeyed by:
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- Fill ups The S.I unit of resistance is……………and is denoted by…………… .
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- What is unit of resistance? Define it.
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- A solenoid is at potential difference of 60 V. current flowing through...
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- The resistance of a discharge tube is
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- A nichrome wire 1 m long and 1mm^2 in cross-section area drawn 4A at 2...
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- Reciprocal of resistance is called conductance.(True/False)
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- Which of the following physical quantities possesses the dimensions of...
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- The filament of electric bulb is made of .............. .
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- The length of a wire is doubled. Its conductance will
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- The length of a wire is doubled by pulling it.Find the new resistance.
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- Which of the following has negative temperature coefficient of resista...
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- Which of the following has a negative temperature coefficient?
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- A wire has a resistance of 3.1 Omega at 30^@C and a resistance of 4....
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- A wire has a resistance of 3.1Omega at 30^@C and a resistance of 4.5Om...
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- Three bulbs of electric powers 40 W, 60 W and 100 W are connected in s...
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- A 30 V . 90 W lamp is to be operated on a 120 V d.e. line for proper g...
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- If a power of 100 W is being supplied across a potential difference of...
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- A 10Omega electric heater operates on a 110 V line. The rate at which ...
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- On 220 V supply, a heater heats a volume of water in 5 minutes time. O...
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