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General
Easy
Question
Eight identical resistances reach are connected along edges of a pyramid having square base ABCD as shown. Calculate equivalent resistance between A and O.
The correct answer is:
Related Questions to study
physics-
Fourteen identical resistors each of resistance 
are connected as shown. Calculate equivalent resistance between A and B.
Fourteen identical resistors each of resistance are connected as shown. Calculate equivalent resistance between A and B.
physics-General
physics-
A hemispherical network of radius a is made by using a conducting wire of resistance per unit length r. Find the equivalent resistance across OP.
A hemispherical network of radius a is made by using a conducting wire of resistance per unit length r. Find the equivalent resistance across OP.
physics-General
physics-
The resistance of all the wires between any two adjacent dots is R. Then equivalent resistance between 
and 
as shown in figure is :
The resistance of all the wires between any two adjacent dots is R. Then equivalent resistance between and as shown in figure is :
physics-General
physics-
In the diagram resistance between any two junctions is R. Equivalent resistance across terminals A and B is
In the diagram resistance between any two junctions is R. Equivalent resistance across terminals A and B is
physics-General
physics-
In the circuit shown in fig. 
Find the potential difference between the points A and B and the currents through each branch.
In the circuit shown in fig. Find the potential difference between the points A and B and the currents through each branch.
physics-General
physics-
In the circuit shown, all the side resistances are of value 
and all inner resistances are of value 
. Find the current via branch 
.
In the circuit shown, all the side resistances are of value and all inner resistances are of value . Find the current via branch .
physics-General
physics-
In the given circuit, the battery has an emf E=60 V and an internal resistance 
Find the current at a, b, c, and d when all the switches are closed.
In the given circuit, the battery has an emf E=60 V and an internal resistance Find the current at a, b, c, and d when all the switches are closed.
physics-General
physics-
Calculate battery current and equivalent resistance of the network shown in figure.
Calculate battery current and equivalent resistance of the network shown in figure.
physics-General
physics-
Find the emf and internal resistance of a single battery which is equivalent to a combination of three batteries as shown in figure.
Find the emf and internal resistance of a single battery which is equivalent to a combination of three batteries as shown in figure.
physics-General
physics-
In the circuit shown in figure reading of voltmeter is 
when only 
is closed, reading of voltmeter is 
when only 
is closed. The reading of voltmeter is 
when both and are closed then
In the circuit shown in figure reading of voltmeter is when only is closed, reading of voltmeter is when only is closed. The reading of voltmeter is when both and are closed then
physics-General
physics-
When an ammeter of negligible internal resistance is inserted in series with circuit it reads 1 A. When the voltmeter of very large resistance is connected across X it reads 1 V. When the point A and are shorted by a conducting wire, the voltmeter measures 10 V across the battery. The internal resistance of the battery is equal to
When an ammeter of negligible internal resistance is inserted in series with circuit it reads 1 A. When the voltmeter of very large resistance is connected across X it reads 1 V. When the point A and are shorted by a conducting wire, the voltmeter measures 10 V across the battery. The internal resistance of the battery is equal to
physics-General
physics-
Fig. shows a part of circuit. When a current I=1.5A passes through it in the direction shown, power delivered to it (section XY) is 75 W. Potential difference between X and Y and also the emf E of the cell are respectively ( assume that the cell has a negligible internal resistance)
Fig. shows a part of circuit. When a current I=1.5A passes through it in the direction shown, power delivered to it (section XY) is 75 W. Potential difference between X and Y and also the emf E of the cell are respectively ( assume that the cell has a negligible internal resistance)
physics-General
physics-
Two current elements P and Q have current voltage characteristics as shown below :
Which of the graphs given below represents current voltage characteristics when P and Q are in series.
Two current elements P and Q have current voltage characteristics as shown below :
Which of the graphs given below represents current voltage characteristics when P and Q are in series.
physics-General
physics-
A rod of length L and cross-section area A lies along the x-axis between x=0 and x=L. The material obeys Ohm's law and its resistivity varies along the rod according to 
. Find the total resistance of the rod. The end of the rod at x=0 is at a potential 
and it is zero at x=L.
A rod of length L and cross-section area A lies along the x-axis between x=0 and x=L. The material obeys Ohm's law and its resistivity varies along the rod according to . Find the total resistance of the rod. The end of the rod at x=0 is at a potential and it is zero at x=L.
physics-General
physics-
A material of resistivity 
is formed in the shape of a truncated cone of altitude 
. The top end has a radius a while bottom b. Assuming a uniform current density through any circular cross-section of the cone. Find the resistance between the two ends.
A material of resistivity is formed in the shape of a truncated cone of altitude . The top end has a radius a while bottom b. Assuming a uniform current density through any circular cross-section of the cone. Find the resistance between the two ends.
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