Physics-
General
Easy
Question
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)
- 24 W
- 12 W
- 6 W
- 15 W
The correct answer is: 6 W
Related Questions to study
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 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
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
Maths-
The angle between the line 2x + y + 1 =0 and x + ky + 5 = 0 is 90° then k = _______
For such questions, we should know the properties of perpendicular lines. We should know how to find the slopes too.
The angle between the line 2x + y + 1 =0 and x + ky + 5 = 0 is 90° then k = _______
Maths-General
For such questions, we should know the properties of perpendicular lines. We should know how to find the slopes too.
Maths-
The angle between the line x + y = 1 and x – y = 2 is
The angle between the line x + y = 1 and x – y = 2 is
Maths-General
Maths-
The angle between 2x + 3y – 7 = 0 and x + y – 8 = 0 is
The angle between 2x + 3y – 7 = 0 and x + y – 8 = 0 is
Maths-General
Maths-
The angle between ax + by + c = 0 and (a + b) x – (a – b) y = 0 is
The angle between ax + by + c = 0 and (a + b) x – (a – b) y = 0 is
Maths-General
Maths-
If a line perpendicular to 2x - 3y + 7 = 0 forms a triangle with the coordinate axes whose area is 3 sq. units, then the equation of the line (s) is
If a line perpendicular to 2x - 3y + 7 = 0 forms a triangle with the coordinate axes whose area is 3 sq. units, then the equation of the line (s) is
Maths-General
Maths-
For all value of a and b the line ( a + 2b) x + (a - b) y + (a + 5b) = 0 passes through the point
For all value of a and b the line ( a + 2b) x + (a - b) y + (a + 5b) = 0 passes through the point
Maths-General
Maths-
Equation of the line making equal intercepts on the axes and passing through the point (2, 4) is
Equation of the line making equal intercepts on the axes and passing through the point (2, 4) is
Maths-General
Maths-
The equation of the line passing through (3, –4) and perpendicular to the line joining (–2, 6) and (5, 9) is
The equation of the line passing through (3, –4) and perpendicular to the line joining (–2, 6) and (5, 9) is
Maths-General
Maths-
A line make zero intercepts on x – axis and y – axis and it is perpendicular to the line 3x +4y+ 6 = 0 then its equation is
A line make zero intercepts on x – axis and y – axis and it is perpendicular to the line 3x +4y+ 6 = 0 then its equation is
Maths-General