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According to Kirchhoff’s current law as applied to a junction in a network of

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Five conductors are meeting at a point `x` as shown in the figure. What is the value of current in fifth

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The currents `i_1 and i_2` through the resistors `R_1(=10 Omega) and R_2 (= 30 Omega)` in the circuit diagram with `E_1= 3 V, E_2 = 3 V and E_3 = 2 V` are

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The algebraic sum of voltages around any closed path in a network is equal

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The potential difference `(V_A - V_B)` between the points A and B in the given figure

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If `2A` current is flowing in the shown circuit, then potential difference `(V_B - V_D)` in balanced condition

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In a Wheatstone bridge circuit, `P=7 Omega, Q= 8 Omega, R = 12 Omega and S = 7 Omega`. Find the additional resistance to be used in series with `S` , so that the bridge is

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A meter bridge is set up as shown in figure, to determine an unknown resistance `X` using a standard `10 Omega` resistor. The galvanometer shows null point when tapping key is at `52 cm` mark. The end-corrections are `1 cm and 2 cm` respectively for the ends A and B. The determined value of `X`

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The figure below shows a `2.0 V` potentiometer used for the determination of internal resistance of a `2.5 V` cell. The balance point of the cell in the open circuit is 75 cm. When a resistor of `10 Omega` is used in the external circuit of the cell, the balance point shifts to 65 cm length of potentiometer wire. The internal resistance of the cell

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A potentiometer circuit is set up as shown. The potential gradient across the potentiometer wire, is `k` volt/cm and the ammeter, present in the circuit, reads `1.0` A when two way key is switched off. The balance points, when the key between the terminals (i) 1 and 2 (ii) 1 and 3, is plugged in, are found to be at lengths `l_1 cm and l_2 cm`, respectively. The magnitudes of the resistors `R and X` in ohm, are then, respectively equal

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`10 A` current passes through a copper. The net charge after `5s` in the wire

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Au is a highly conductive metal which obeys Ohm’s law but................does not obey Ohm’s law due to lack of conduction

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During charging of a cell terminal voltage i s ................ than emf of

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The connections between resistors in a meter bridge are made of thick copper strips because thick copper strips have

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Long wire of the potentiometer gives lower value of................ which increases sensitivity of

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Which of the following statement is correct when power delivered by a battery is

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Choose the correct

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Match the Column I (graph) with Column II (relation) and select the correct answer from the codes given below. Column I Column II A. p. Temperature dependence of resistivity for a typical semiconductor. B. q. Resistivity p of copper as a function of temperature T. C. r. Resistivity `rho` of nichrome as a function of absolute temperature T .

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Assertion: A wire carrying an electrical current has no electric field inside it. Reason: Rate of flow of electrons in one direction is equal to the rate of flow of protons in opposite

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Assertion: In electrostatics, all charges whether free or bound are considered to be at rest.Reason: The charges in motion constitute an electric

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