Physics-
General
Easy
Question
A 5V battery with internal resistance 2 
and a 2V battery with internal resistance 1W resistor are connected to a 10 as shown in the figure
- 0.27 A P2 to P1
- 0.03 A P1 to P2
- 0.03 A P2 to P1
- 0.27 A P1 to P2
The correct answer is: 0.03 A P2 to P1
Related Questions to study
Chemistry-
When 2g non-volatile solute is dissolved in 100g of benzene, the vapour pressure of benzene at 20
C is Lowered from 74:66 mm to 74.01mm Molecular formula of solute may be:
When 2g non-volatile solute is dissolved in 100g of benzene, the vapour pressure of benzene at 20C is Lowered from 74:66 mm to 74.01mm Molecular formula of solute may be:
Chemistry-General
Physics-
If in the circuit shown below, the internal and V resistance of the battery is 1 and V p and VQ 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 and V resistance of the battery is 1 and V p and VQ 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 4V and 8V are connected to two resister 4 and 6W as shown If 8V cell and 6W is short circuited Then current through resistance
Two cells of emf 4V and 8V are connected to two resister 4 and 6W as shown If 8V cell and 6W is short circuited Then current through resistance
Physics-General
Physics-
In the circuit shown L1, L2, L3, and L4 are identical light bulbs There are six voltmeters connected to the circuit as shown Assume that the voltmeters are ideal If L3 were to burn out, opening the circuit, which voltmeter(s) would read zero volts?
In the circuit shown L1, L2, L3, and L4 are identical light bulbs There are six voltmeters connected to the circuit as shown Assume that the voltmeters are ideal If L3 were to burn out, opening the circuit, which voltmeter(s) would read zero volts?
Physics-General
Physics-
The potentiometer circuit shown is used to find the internal resistance of the cell E At balance, the galvanometer pointer does not deflect, and NO current flows through
a) the potentiometer wire PQ
b) the resistor R
c) the galvanometer G
The potentiometer circuit shown is used to find the internal resistance of the cell E At balance, the galvanometer pointer does not deflect, and NO current flows through
a) the potentiometer wire PQ
b) the resistor R
c) the galvanometer G
Physics-General
Physics-
In the above circuit, C denotes the balance position on the potentiometer wire AB Which of the following procedures can shift C towards the end B?
a) replacing the driving cell X by one with a smaller EMF
b) adding a resistance in series with the galvanometer G
c) increasing the resistance of the rheostat R
In the above circuit, C denotes the balance position on the potentiometer wire AB Which of the following procedures can shift C towards the end B?
a) replacing the driving cell X by one with a smaller EMF
b) adding a resistance in series with the galvanometer G
c) increasing the resistance of the rheostat R
Physics-General
Physics-
In the circuit shown in fig., the potential difference between the points C and D is balanced against 40 cm length of potentiometer wire of total length 100 cm in order to balance the potential difference between the points D and E The jockey to be pressed on potentiometer wire at a distance of
In the circuit shown in fig., the potential difference between the points C and D is balanced against 40 cm length of potentiometer wire of total length 100 cm in order to balance the potential difference between the points D and E The jockey to be pressed on potentiometer wire at a distance of
Physics-General
Chemistry-
Cations absorb 6.023
1022 electrons for the reduction How many equivalents of the ion reduced
Cations absorb 6.0231022 electrons for the reduction How many equivalents of the ion reduced
Chemistry-General
Physics-
Three bulbs with their power and working voltage are connected as shown in the circuit diagram to a 12 V battery The total power consumed by the bulbs is (ignore the internal resistance of the battery shown)
Three bulbs with their power and working voltage are connected as shown in the circuit diagram to a 12 V battery The total power consumed by the bulbs is (ignore the internal resistance of the battery shown)
Physics-General
Physics-
In the following circuit, 5 resistor develops 45 J/s due to current flowing through it the resistor is power developed across 12
In the following circuit, 5 resistor develops 45 J/s due to current flowing through it the resistor is power developed across 12
Physics-General
Chemistry-
Electrolysis is the process in which electrical energy is converted to chemical energy in electrolytic cell, oxidation takes place at anode and reduction at cathode Electrode process depends on the electrode taken for electrolysis Amount of substance liberated at an electrode is directly proportional to the amount of charge passed through it the mass of substance liberated at electrode is calculated using the following relation:
Here, E represents the equivalent mass and 96500 C 'is called the Faraday constant Faraday (96500 C) is the charge of I mole electron, i.e., 6.023 1023 electrons; it is used to liberate one gram equivalent of the substance.
The passage of current liberates H2 at cathode and Cl2 at and e The solution is:
Electrolysis is the process in which electrical energy is converted to chemical energy in electrolytic cell, oxidation takes place at anode and reduction at cathode Electrode process depends on the electrode taken for electrolysis Amount of substance liberated at an electrode is directly proportional to the amount of charge passed through it the mass of substance liberated at electrode is calculated using the following relation:
Here, E represents the equivalent mass and 96500 C 'is called the Faraday constant Faraday (96500 C) is the charge of I mole electron, i.e., 6.023 1023 electrons; it is used to liberate one gram equivalent of the substance.
The passage of current liberates H2 at cathode and Cl2 at and e The solution is:
Chemistry-General
Physics-
For a cell, the graph between the P.D (V) across the terminals of the cell and the current I drawn from the cell is shown in the fig the emf and the internal resistance of the cell is E and r respectively
For a cell, the graph between the P.D (V) across the terminals of the cell and the current I drawn from the cell is shown in the fig the emf and the internal resistance of the cell is E and r respectively
Physics-General
Physics-
A current of 0.10 A flows through the 25W resistor represented in the diagram to the right The current through the 80W resistor IS:
A current of 0.10 A flows through the 25W resistor represented in the diagram to the right The current through the 80W resistor IS:
Physics-General
Chemistry-
What will be the maximum spin multiplicity for 4d orbital?
What will be the maximum spin multiplicity for 4d orbital?
Chemistry-General
Chemistry-
he activation energies of two reactions are 
and
If the
temperature of the reacting systems is increased from T1 to T2 predict which of the following alternatives is correct? where, k; and k; are rate constants at higher temperature
he activation energies of two reactions are andIf the
temperature of the reacting systems is increased from T1 to T2 predict which of the following alternatives is correct? where, k; and k; are rate constants at higher temperature
Chemistry-General
