List of top Physics Questions on Current electricity asked in CUET (UG)

A cell of emf 1.1 V and internal resistance 0.5 Ω is connected to a wire of resistance 0.5 Ω. Another cell of the same emf is now connected in series with the intention of increasing the current but the current in the wire remains the same. The internal resistance of the second cell is________.
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Two resistances of 100 \(\Omega\) and 200 \(\Omega\) are connected in series across a 20 V battery as shown in the figure below. The reading in a 200 \(\Omega\) voltmeter connected across the 200 \(\Omega\) esistance is _______.

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The current through a \(\frac{4}{3}\Omega\) external resistance connected to a parallel combinationof two cells of 2 V and 1 V emf and internal resistances of 1 \(\Omega\) and 2 \(\Omega\) respectively is ______.
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A metallic wire of uniform area of cross-section has a resistance \(R,\) resistivity \(ρ,\) and power rating P at V volts. The wire is uniformly stretched to reduce the radius to half the original radius. The values of resistance, resistivity, and power rating at V volts are now denoted by \(R'\), \(ρ'\), and \(P' \)respectively. The corresponding values are correctly related as __________.
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A metal wire is subjected to a constant potential difference. When the temperature of the metal wire increases, the drift velocity of the electron in it________.
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For the given mixed combination of resistors calculate the total resistance between points A and B.

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P, Q, R, and S are four wires of resistances 3 Ω, 3 Ω, 3 Ω, and 4 Ω respectively. They are connected to form the four arms of a Wheatstone bridge circuit. The resistance with which S must be shunted in order that the bridge may be balanced is__________
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Find the value of current in the circuit.