Physics-
General
Easy
Question
In the circuit shown, the ammeter reads 2 A. The resistance of ammeter is negligible. What is the value of R?
- 2
- 3
- 5
- 6
The correct answer is: 6
Related Questions to study
physics-
The power dissipated in the 6 ohm resistance in given figure, if the internal resistance of battery is 0.5 ohm is
The power dissipated in the 6 ohm resistance in given figure, if the internal resistance of battery is 0.5 ohm is
physics-General
physics-
Value of each resistance in the circuit is r. The equivalent resistance between A and B is
Value of each resistance in the circuit is r. The equivalent resistance between A and B is
physics-General
physics-
In the network shown in figure, each resistance is R. The equivalent resistance between A and B is
In the network shown in figure, each resistance is R. The equivalent resistance between A and B is
physics-General
physics-
In the circuit shown in the figure, the value of resistance X, when the potential difference between the points B and D is zero, will be
In the circuit shown in the figure, the value of resistance X, when the potential difference between the points B and D is zero, will be
physics-General
physics-
In a group of N cells, emf of each varies directly with its internal resistance as per the equation 
They are connected as shown in the figure. The current in the circuit is
In a group of N cells, emf of each varies directly with its internal resistance as per the equation They are connected as shown in the figure. The current in the circuit is
physics-General
physics-
In the figure shown, the potentiometer wire of length l = 100 cm and resistance 9 is joined to a cell of emf E1 = 10 V and internal resistance r1 = 1. Another cell of emf E2 = 5V and internal resistance r2 = 2 is connected as shown. The galvanometer G will show no deflection when the length AC is
In the figure shown, the potentiometer wire of length l = 100 cm and resistance 9 is joined to a cell of emf E1 = 10 V and internal resistance r1 = 1. Another cell of emf E2 = 5V and internal resistance r2 = 2 is connected as shown. The galvanometer G will show no deflection when the length AC is
physics-General
physics-
In the network shown, the current I is equal to 
A. Neglecting the internal resistance of the cell, the value of R is
In the network shown, the current I is equal to A. Neglecting the internal resistance of the cell, the value of R is
physics-General
physics-
The total current supplied to the circuit by the battery is
The total current supplied to the circuit by the battery is
physics-General
physics-
Two short bar magnets of equal dipole moments ‘M’ each are fastened perpendicular at their centers as shown in figure. The magnitude of the magnetic field at ‘P’ at a distance d from their common center as shown in figure is
Two short bar magnets of equal dipole moments ‘M’ each are fastened perpendicular at their centers as shown in figure. The magnitude of the magnetic field at ‘P’ at a distance d from their common center as shown in figure is
physics-General
physics-
A magnet of length 2L and moment ‘M’ is axially cut into two equal halves ‘P’ and ‘Q’. The piece ‘P’ is bent in the form of semi circle and ‘Q’ is attached to it as shown. Its moment is
A magnet of length 2L and moment ‘M’ is axially cut into two equal halves ‘P’ and ‘Q’. The piece ‘P’ is bent in the form of semi circle and ‘Q’ is attached to it as shown. Its moment is
physics-General
physics-
The variation of magnetic susceptibility 
with temperature for a diamagnetic substance is best represented by
The variation of magnetic susceptibility with temperature for a diamagnetic substance is best represented by
physics-General
physics-
A 3 volt battery with negligible internal resistance is connected in circuit as shown in the figure. The current I in the circuit will be.
A 3 volt battery with negligible internal resistance is connected in circuit as shown in the figure. The current I in the circuit will be.
physics-General
physics-
In the circuit dissipation is 150 W. Then R is
In the circuit dissipation is 150 W. Then R is
physics-General
physics-
A wire has a no uniform cross-section as shown. A steady current is flowing through it. Then the drift speed of the electrons
A wire has a no uniform cross-section as shown. A steady current is flowing through it. Then the drift speed of the electrons
physics-General
physics-
Find the potential difference between A and B
Find the potential difference between A and B
physics-General
