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NIKITA PUBLICATION-CURRENT ELECTRICITY-Multiple Choice Questions
- For two wires, length ratio is 1:4, radius ratio is 1:2, specific resi...
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- In potentiometer experiment, a cell is balanced by length 120cm. When ...
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- S.I. unit of specific resistance is
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- Four resistances arranged to form a Wheatstone's network are 8Omega, 1...
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- When galvanometer of unknown resistance connected across a series comb...
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- A potentiometer wire has a resistivity of 10^(9)Omega cm and area of c...
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- In Wheatstone bridge, the resistances in four arms are 10Omega,10Omega...
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- A wire has a resistance R. Find new resistance, (i) if radius of cro...
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- Specific resistance of a metal conductor is 4xx10^(-5)Omegam and its a...
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- A wire of length 1.6m has a resistance 8 Omega is connected to a batte...
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- Sensitivity of potentiometer can be increased by
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- S.I. unit of potential gradient is
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- Kirchhoff's first rule obeys law of conservation of charge. Explain.
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- The unit of specific resistance is
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- Four resistances of 16 Omega , 12 Omega , 4 Omega and 9 Omega respecti...
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- For measurement of potential difference, potentiometer is perferred in...
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- When a resistance of 100Omega is connected in series with a galvanomet...
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- The thermo emf E of a thermocouple is found to vary wit temperature T ...
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- The specific resistance and area of cross section of the potentiometer...
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- If the temperature of cold junction of thermocouple is lowered, then t...
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