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BINA LIBRARY-CURRENT ELECTRICITY-EXERCISE
- How many different combinations of three equal resistors can be made ?
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- A steady current flows in a metallic conductor of non uniform cross-se...
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- A metallic wire of resistance 40 Omega is stretched to twice its lengt...
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- A metallic wire is drawn to reduce its diameter to half its original v...
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- Three resistances each of 4 Omega are connected to form a triangle. Th...
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- Four wires of equal length and of resistance 10 Omega each are connect...
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- Assuming that the charge of an electron is 1.6 x 10^-19 C. The number ...
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- The electrical resistance of metals
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- The resistance of a conductor is 5 Omega at 50°C and 6 Omega at 100°C...
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- A piece of copper and another of germanium are cooled from room temera...
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- What is the order of the drift velocity of electrons?
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- A wire of 4 Omega resistance is bent at 180° at its mid point and twis...
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- A and B are two wires of copper of equal cross-section and A is longer...
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- If a wire of uniform cross sectional area is cut equally into two part...
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- Ampere second is the unit of
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- The temperature co-efficient of resistance of a wire is 0.00125 °C^-1....
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- Krichhoff's first law deals with conservation of
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- The instrument for accurate measurement of emf of a cell is
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- In a metre bridge, the balancing length from the left end is 20 cm. Th...
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- The sensitivity of a potentiometer can be increased by
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