Arihant Physics by D.C Pandey
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 [...]
In a conductor, if the number of conduction electrons per unit volume is 8.5 × 10^28 m ^–3 and mean free time is 25 fs (femto second), it’s approximate resistivity is : (me = 9.1 × 10^–31 kg)
05
Dec
In a conductor, if the number of conduction electrons per unit volume is 8.5 × 10^28 m ^–3 and mean free time is 25 fs (femto second), it’s approximate resistivity is : (me = 9.1 × 10^–31 kg) if the number of conduction electrons per unit volume is 8.5 × 10^28 m ^–3 and mean [...]
Determine the charge on the capacitor in the following circuit :
05
Dec
Determine the charge on the capacitor in the following circuit : Determine the charge on the capacitor in the following circuit : December 5, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity , Volume 2 ,
In the circuit shown, a four-wire potentiometer is made of a 400cm long wire, which extends between A and B. The resistance per unit length of the potentiometer wire is r=0.01Ω/cm. If an ideal voltmeter is connected as shown with jockey J at 50 cm from end A, the expected reading of the voltmeter will be :-
05
Dec
In the circuit shown, a four-wire potentiometer is made of a 400cm long wire, which extends between A and B. The resistance per unit length of the potentiometer wire is r=0.01Ω/cm. If an ideal voltmeter is connected as shown with jockey J at 50 cm from end A, the expected reading of the voltmeter will [...]
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a four-wire potentiometer is made of a 400cm long wire ,
In the circuit shown ,
the expected reading of the voltmeter will be :- ,
which extends between A and B. The resistance per unit length of the potentiometer wire is r=0.01Ω/cm. If an ideal voltmeter is connected as shown with jockey J at 50 cm from end A ,
A cell of internal resistance r drives current through an external resistance R. The power delivered by the cell to the external resistance will be maximum when :
05
Dec
A cell of internal resistance r drives current through an external resistance R. The power delivered by the cell to the external resistance will be maximum when : A cell of internal resistance r drives current through an external resistance R. The power delivered by the cell to the external resistance will be maximum when [...]
In the figure shown, what is the current (in Ampere) drawn from the battery? You are given R1 = 15Ω, R2 = 10Ω, R3 = 20Ω, R4 = 5Ω, R5 = 25Ω, R6 = 30Ω, E = 15V
05
Dec
In the figure shown, what is the current (in Ampere) drawn from the battery? You are given R1 = 15Ω, R2 = 10Ω, R3 = 20Ω, R4 = 5Ω, R5 = 25Ω, R6 = 30Ω, E = 15V E = 15V In the figure shown R2 = 10Ω R3 = 20Ω R4 = 5Ω R5 [...]