Volume 2
When the switch S, in the circuit shown, is closed, then the value of current i will be :
05
Dec
When the switch S, in the circuit shown, is closed, then the value of current i will be : In the circuit shown is closed then the value of current i will be : When the switch S December 5, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity , Volume [...]
A resistance is shown in the figure. Its value and tolerance are given respectively by :
05
Dec
A resistance is shown in the figure. Its value and tolerance are given respectively by : A resistance is shown in the figure. Its value and tolerance are given respectively by : December 5, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity , Volume 2 ,
A copper wire is stretched to make it 0.5 % longer. The percentage change in its electrical resistance if its volume remains unchanged is :
05
Dec
A copper wire is stretched to make it 0.5 % longer. The percentage change in its electrical resistance if its volume remains unchanged is : A copper wire is stretched to make it 0.5 % longer. The percentage change in its electrical resistance if its volume remains unchanged is : December 5, 2020 Category: Arihant [...]
Drift speed of electrons, when 1.5 A of current flows in a copper wire of cross section 5 mm^2 , is v. If the electron density in copper is 9×10^28/m^3 the value of v in mm/s close to (Take charge of electron to be =1.6×10^−19C)
05
Dec
Drift speed of electrons, when 1.5 A of current flows in a copper wire of cross section 5 mm^2 , is v. If the electron density in copper is 9×10^28/m^3 the value of v in mm/s close to (Take charge of electron to be =1.6×10^−19C) Drift speed of electrons is v. If the electron density [...]
The resistive network shown below is connected to a D.C. source of 16 V. The power consumed by the network is 4 Watt. The value of R is :
05
Dec
The resistive network shown below is connected to a D.C. source of 16 V. The power consumed by the network is 4 Watt. The value of R is : The resistive network shown below is connected to a D.C. source of 16 V. The power consumed by the network is 4 Watt. The value of [...]
To verify Ohm’s law, a student connects the voltmeter across the battery as shown in the figure. The measure voltage is plotted as a function of the current, and the following graph is obtained. if VO is almost zero. identify the correct statement
05
Dec
To verify Ohm’s law, a student connects the voltmeter across the battery as shown in the figure. The measure voltage is plotted as a function of the current, and the following graph is obtained. if VO is almost zero. identify the correct statement a student connects the voltmeter across the battery as shown in the [...]
Space between two concentric conducting spheres of radii a and b(b>a) is filled with a medium of resistivity ρ. The resistance between the two spheres will be :
05
Dec
Space between two concentric conducting spheres of radii a and b(b>a) is filled with a medium of resistivity ρ. The resistance between the two spheres will be : Space between two concentric conducting spheres of radii a and b(b>a) is filled with a medium of resistivity ρ. The resistance between the two spheres will be [...]
In a meter bridge experiment, the circuit diagram and the corresponding observation table are shown in figure. Which of the readings is inconsistent?
05
Dec
In a meter bridge experiment, the circuit diagram and the corresponding observation table are shown in figure. Which of the readings is inconsistent? In a meter bridge experiment the circuit diagram and the corresponding observation table are shown in figure. Which of the readings is inconsistent? December 5, 2020 Category: Arihant Physics by D.C Pandey [...]
In an experiment, the resistance of a material is plotted as a function of temperature (in some range). As shown in the figure, it is a straight line. One may conclude that:
05
Dec
In an experiment, the resistance of a material is plotted as a function of temperature (in some range). As shown in the figure, it is a straight line. One may conclude that: In an experiment it is a straight line. One may conclude that: the resistance of a material is plotted as a function of [...]
A metal wire of resistance 3 Ω is elongated to make a uniform wire of double its previous length. This new wire is now bent and the ends joined to make a circle. If two points on this circle make an angle 60∘ at the centre, the equivalent resistance between these two points will be :-
05
Dec
A metal wire of resistance 3 Ω is elongated to make a uniform wire of double its previous length. This new wire is now bent and the ends joined to make a circle. If two points on this circle make an angle 60∘ at the centre, the equivalent resistance between these two points will be [...]