Physics-
General
Easy
Question
The given figure shows a network of resistances and a battery.
Identify the correct statement(s)
- The circuit satisfies the condition of a balanced Wheatstone bridge.
- no current flows in the branch BD
The correct answer is:
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The figure shows a tetrahedron, each side of which has a resistance r
Choose the correct statement(s) related to the resistance between any two points
The figure shows a tetrahedron, each side of which has a resistance r
Choose the correct statement(s) related to the resistance between any two points
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The equivalent resistance(s)
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The equivalent resistance(s)
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The current through
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Consider the circuit shown in the figure
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In the circuit shown E, F, G and H are cells of e.m.f. 2V, 1V, 3V and 1V respectively and their internal resistances are 2
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A conductor is made of an isotropic material and has shape of a truncated cone. A battery of constant emf is connected across it and its left end is earthed as shown in figure. If at a section distant x from left end, electric field intensity, potential and the rate of generation of heat per unit length are E, V and H respectively, which of the following graphs is/are correct?
A conductor is made of an isotropic material and has shape of a truncated cone. A battery of constant emf is connected across it and its left end is earthed as shown in figure. If at a section distant x from left end, electric field intensity, potential and the rate of generation of heat per unit length are E, V and H respectively, which of the following graphs is/are correct?
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A metallic conductor of irregular cross-section is as shown in the figure. A constant potential difference is applied across the ends (1) and (2). Then :
A metallic conductor of irregular cross-section is as shown in the figure. A constant potential difference is applied across the ends (1) and (2). Then :
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In the given potentiometer circuit, the resistance of the potentiometer wire AB is 
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In the circuit shown the readings of ammeter and voltmeter are 4A and 20V respectively. The meters are non ideal, then R is:
In the circuit shown the readings of ammeter and voltmeter are 4A and 20V respectively. The meters are non ideal, then R is:
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The value of the resistance R in figure is adjusted such that power dissipated in the 
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The value of the resistance R in figure is adjusted such that power dissipated in the resistor is maximum. Under this condition
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Two circuits (shown below) are called ‘Circuit A’ and ‘Circuit B’. The equivalent resistance of ‘Circuit a’ is x and that of ‘Circuit B’ is y between 1 and 2.
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A battery of emf E and internal resistance r is connected across a resistance R. Resistance R can be adjusted to any value greater than or equal to zero. A graph is plotted between the current (i) passing through the resistance and potential difference (V) across it. Select the correct alternative(s).
A battery of emf E and internal resistance r is connected across a resistance R. Resistance R can be adjusted to any value greater than or equal to zero. A graph is plotted between the current (i) passing through the resistance and potential difference (V) across it. Select the correct alternative(s).
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The figure shows a network of four resistances and three batteries
Choose the correct alternative
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Choose the correct alternative
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The figure shows a network of resistances in which the point A is earthed.
The point which has the least potential is
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The point which has the least potential is
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The figure shows a network of five resistances and two batteries
The current through the 30V battery is
The figure shows a network of five resistances and two batteries
The current through the 30V battery is
physics-General
