Current Electricity

Related Questions

• Calculate the equivalent resistance between A and B

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• We have a galvanometer of resistance $25\,\Omega $. It is shunted by a $2.5\,\Omega $ wire. The part of total current that flows through the galvanometer is given as

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• What will happen when a 40 watt, 220 volt lamp and 100 watt, 220 volt lamp are connected in series across 40 volt supply

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• The resistivity of iron is $1 \times {10^{ - 7}}\,ohm - m$. The resistance of a iron wire of particular length and thickness is 1 ohm. If the length and the diameter of wire both are doubled, then the resistivity in $ohm - m$ will be

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• Resistances of 6 ohm each are connected in the manner shown in adjoining figure. With the current 0.5 ampere as shown in figure, the potential difference ${V_P} - {V_Q}$ is

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