Current Electricity

Related Questions

• Voltmeters V1 and V2 are connected in series across a D.C. line. V1 reads 80 volts and has a per volt resistance of 200 ohms. V2 has a total resistance of 32 kilo ohms. The line voltage is

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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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• The current flowing through a coil of resistance 900 ohms is to be reduced by 90%. What value of shunt should be connected across the coil

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• Consider the circuit given here with the following parameters. E.M.F. of the cell = 12 V. Internal resistance of the cell $ = 2\,\Omega $. Resistance $R = 4\,\Omega $ Which one of the following statements in true

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• Two resistances ${R_1}$ and ${R_2}$ are joined as shown in the figure to two batteries of e.m.f.${E_1}$ and ${E_2}$. If ${E_2}$ is short-circuited, the current through ${R_1}$is

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