Current Electricity

Related Questions

• A rod of a certain metal is 1.0 m long and 0.6 cm in diameter. Its resistance is $3.0 \times 10^{-3}$ ohm. Another disc made of the same metal is 2.0 cm in diameter and 1.0 mm thick. What is the resistance between the round faces of the disc

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• In a typical Wheatstone network, the resistances in cyclic order are $A = 10 \Omega$, $B = 5 \Omega$, $C = 4 \Omega$ and $D = 4 \Omega$ for the bridge to be balanced

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• n identical bulbs, each designed to draw a power p from a certain voltage supply, are joined in series across that supply. The total power which they will draw i

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• The conductivity of a superconductor is

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• Three resistors are connected to form the sides of a triangle ABC, the resistance of the sides AB, BC and CA are 40 ohms, 60 ohms and 100 ohms respectively. The effective resistance between the points A and B in ohms will be

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