Physics-
General
Easy
Question
The three capacitors in figure, store a total energy of
- 12
- 36
- 48
- 80
The correct answer is: 48
Related Questions to study
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In the figure, the potential at X due to the charges + Q and – Q is, using SI units,
In the figure, the potential at X due to the charges + Q and – Q is, using SI units,
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A conductor AB of length l carrying a current i is placed perpendicular to a long straight conductor XY carrying a current l, as shown. the force on AB will act
A conductor AB of length l carrying a current i is placed perpendicular to a long straight conductor XY carrying a current l, as shown. the force on AB will act
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A circular coil of wire carries a current. PQ is a part of very long wire carrying a current and passing close to the circular coil. if the directions of currents are those shown in figure, then the direction of the force acting on PQ is
A circular coil of wire carries a current. PQ is a part of very long wire carrying a current and passing close to the circular coil. if the directions of currents are those shown in figure, then the direction of the force acting on PQ is
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Three capacitors each of 1
are connected as shown. The capacitance between the points A and B is
Three capacitors each of 1 are connected as shown. The capacitance between the points A and B is
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The equivalent capacitance between A and B in the figure is 1
F. Then the value of the capacitance C is
The equivalent capacitance between A and B in the figure is 1F. Then the value of the capacitance C is
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A positively charged pendulum is oscillating in a uniform electric field as shown in figure. Its time period as compared to that when it was uncharged
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Charges 2Q and –Q are placed as shown. The point at which electric field intensity is zero will be
Charges 2Q and –Q are placed as shown. The point at which electric field intensity is zero will be
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A manometer shown in the figure contains a liquid of density . Find the difference in the levels when the manometer rotates with a constant angular velocity about one of its vertical limbs:
A manometer shown in the figure contains a liquid of density . Find the difference in the levels when the manometer rotates with a constant angular velocity about one of its vertical limbs:
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A cylindrical vessel of 90 cm height is kept filled upto brim. It has four holes 1,2,3,4 which are respectively at heights of 20 cm, 30 cm, 45 cm and 50 cm from the horizontal floor PQ. The water falling at the maximum horizontal distance from the vessel comes from
A cylindrical vessel of 90 cm height is kept filled upto brim. It has four holes 1,2,3,4 which are respectively at heights of 20 cm, 30 cm, 45 cm and 50 cm from the horizontal floor PQ. The water falling at the maximum horizontal distance from the vessel comes from
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Water flows through a frictionless duct with a cross-section varying as shown in figure. Pressure p at points along the axis is represented by:
Water flows through a frictionless duct with a cross-section varying as shown in figure. Pressure p at points along the axis is represented by:
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A uniform wire having mass per unit length is placed over a liquid surface. The wire causes the liquid to depress by 
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A uniform wire having mass per unit length is placed over a liquid surface. The wire causes the liquid to depress by as shown in figure, then the value of surface tension of liquid is (neglect end effect):
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A conical block, floats in water with 90% height immersed in it. Height h of the block is equal to the diameter of the block i.e. 20 cm the mass to be kept on block, so that the block just floats at the surface of water is
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A block A of mass 10 kg, connected to another hollow block B of same size and negligible mass, by a spring of spring constant 500 N/m, floats in water as shown in the figure. The compression in the spring is block A just touch the upper surface :
A block A of mass 10 kg, connected to another hollow block B of same size and negligible mass, by a spring of spring constant 500 N/m, floats in water as shown in the figure. The compression in the spring is block A just touch the upper surface :
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The figure shows a semi-cylindrical massless gate (of width R) pivoted at the point O holding a stationary liquid of density ρ. A horizontal force F is applied at its lowest position to keep it stationary. The magnitude of the force is:
The figure shows a semi-cylindrical massless gate (of width R) pivoted at the point O holding a stationary liquid of density ρ. A horizontal force F is applied at its lowest position to keep it stationary. The magnitude of the force is:
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Net magnetic field at the center of the circle o due to a current through loop ABC as shown in figure is 
Net magnetic field at the center of the circle o due to a current through loop ABC as shown in figure is
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