Physics-
General
Easy
Question
When 0.005A current flows through a moving coil galvanometer, it gives full scale deflection. It is converted into a voltmeter to read 5 Volt, using an external resistance of . The resistance of galvanometer in ohms is
- 5
- 10
- 15
- 25
The correct answer is: 25
Related Questions to study
Physics-
The force exerted by the conductor AB on the loop CDFG shown in figure is
The force exerted by the conductor AB on the loop CDFG shown in figure is
Physics-General
Physics-
Three long straight and parallel wires, carrying currents are arranged as shown figure. The force experienced by the conductor 'B' of length 25cm is
Three long straight and parallel wires, carrying currents are arranged as shown figure. The force experienced by the conductor 'B' of length 25cm is
Physics-General
Physics-
Two particles A and B of mass and respectively and having the same charge are moving in a plane. A uniform magnetic field exists perpendicular to this plane. The speeds of the particles are and respectively, and the trajectories are as shown in the figure. Then
Two particles A and B of mass and respectively and having the same charge are moving in a plane. A uniform magnetic field exists perpendicular to this plane. The speeds of the particles are and respectively, and the trajectories are as shown in the figure. Then
Physics-General
Physics-
Two circular coils of radii 20cm and 30cm having number of turns 50 and 100 made of same material are connected in series. The ratio of the magnetic field of induction at their centres is
Two circular coils of radii 20cm and 30cm having number of turns 50 and 100 made of same material are connected in series. The ratio of the magnetic field of induction at their centres is
Physics-General
Physics-
In the circuit ohm and ohm. If the resistance of the voltmeter R=10,000ohm, voltmeter reading is
In the circuit ohm and ohm. If the resistance of the voltmeter R=10,000ohm, voltmeter reading is
Physics-General
Physics-
If in the circuit shown below. The internal resistance of the battery is and and are the potentials at P and Q respectively, the potential difference between the points P and Q is
If in the circuit shown below. The internal resistance of the battery is and and are the potentials at P and Q respectively, the potential difference between the points P and Q is
Physics-General
Physics-
Two cells of emf and are connected to two resistors and as shown. If is short circuited then currents through and are
Two cells of emf and are connected to two resistors and as shown. If is short circuited then currents through and are
Physics-General
Physics-
An aluminum wire resistance ' ' and carbon wire resistance ' ' are connected in series to have a resultant resistance of 18 ohm at all temperatures. The values of and in ohms
An aluminum wire resistance ' ' and carbon wire resistance ' ' are connected in series to have a resultant resistance of 18 ohm at all temperatures. The values of and in ohms
Physics-General
Physics-
In the steady state, the charge on the capacitor capacity is
In the steady state, the charge on the capacitor capacity is
Physics-General
Physics-
Current coming from the battery and ammeter reading are
Current coming from the battery and ammeter reading are
Physics-General
Physics-
The variation of current and voltage in a conductor has been shown in figure. The resistance of the conductor is
The variation of current and voltage in a conductor has been shown in figure. The resistance of the conductor is
Physics-General
Physics-
Effective resistance between A and B in the given circuit is
Effective resistance between A and B in the given circuit is
Physics-General
Physics-
The current 'i' in the circuit as shown in fig. is
The current 'i' in the circuit as shown in fig. is
Physics-General
Physics-
The equivalent resistance across XY is
The equivalent resistance across XY is
Physics-General
Physics-
Effective resistance between A and B in the given circuit is
Effective resistance between A and B in the given circuit is
Physics-General