Physics-
General
Easy
Question
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
is the least
is the least
The correct answer is:
Related Questions to study
physics-
Inside a super conducting ring six identical resistors each of resistance R are connected as shown in figure
The equivalent resistance(s)
Inside a super conducting ring six identical resistors each of resistance R are connected as shown in figure
The equivalent resistance(s)
physics-General
physics-
The figure shows a network of resistors and a battery. If 1A current flows through the branch CF, then answer the following questions
The current through
The figure shows a network of resistors and a battery. If 1A current flows through the branch CF, then answer the following questions
The current through
physics-General
physics-
Consider the circuit shown in the figure
Consider the circuit shown in the figure
physics-General
physics-
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
, 1, 3 and 1 respectively
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, 1, 3 and 1 respectively
physics-General
physics-
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?
physics-General
physics-
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 :
physics-General
physics-
In the given potentiometer circuit, the resistance of the potentiometer wire AB is 
. C is a cell of internal resistance r. The galvanometer G does not give zero deflection for any position of the jockey J. Which of the following cannot be a reason for this?
In the given potentiometer circuit, the resistance of the potentiometer wire AB is . C is a cell of internal resistance r. The galvanometer G does not give zero deflection for any position of the jockey J. Which of the following cannot be a reason for this?
physics-General
physics-
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:
physics-General
physics-
The value of the resistance R in figure is adjusted such that power dissipated in the 
resistor is maximum. Under this condition
The value of the resistance R in figure is adjusted such that power dissipated in the resistor is maximum. Under this condition
physics-General
physics-
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.
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.
physics-General
physics-
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).
physics-General
physics-
The figure shows a network of four resistances and three batteries
Choose the correct alternative
The figure shows a network of four resistances and three batteries
Choose the correct alternative
physics-General
physics-
The figure shows a network of resistances in which the point A is earthed.
The point which has the least potential is
The figure shows a network of resistances in which the point A is earthed.
The point which has the least potential is
physics-General
physics-
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
physics-
If X, Y and Z in figure are identical lamps, which of the following changes to the brightnesses of the lamps occur when switch S is closed?
If X, Y and Z in figure are identical lamps, which of the following changes to the brightnesses of the lamps occur when switch S is closed?
physics-General
