Physics question and answers for January 31, 2024
- Q A solid insulating sphere of radius a 2 cm has a uniform charge density p A conducting spherical shell of inner radius b 4 cm and outer radius c 5...
- Q 5 Three concentric spherical shells A B and C of radii a b and c a b c have surface charge densities o o and o respectively If V V...
- Q The width of deplection region in P N junction diode is 500 nm and an internal electric field is 6 105 V m What is the kinetic energy which a...
- Q Three balls with charges of q 2q and 3q are placed at the corners of a square measuring L on each side as shown in Figure 16 6 Assume this...
- Q Assertion A The net force on a dipole in a uniform electric dipole is zero Reason R Electric dipole moment is a vector directed from q to q A A...
- Q A semicircular ring of radius 0 5 m is uniformly charged with a total charge of 1 4 x 10 9 C The electric field intensity at the centre of...
- Q Consider a metallic ring of radius 1 m mass 1 kg and carrying a current of 1A in a gravity free space in the x y plane with its centre...
- Q 2012 1 Two ideal diodes are connected to a battery as shown in the circuit The current supplied by the battery is Dit A C D 14 ESV a 0...
- Q Figure shows a very long smooth non conducting rod of radius r charged with uniform charge density fixed horizontally A neutral and smooth ring B of mass M can slide...
- Q Q 64 Point charge q is placed at a point on the axis of a square non conducting surface The axis is perpendicular to the square surface and is passing...
- Q 22 An oil drop having a mass of 4 8 x 10 10g and charge of 30 x10 8C stands still between two charged horizontal plates separated by a distance...
- Q dius carries uniform surface charge density of o per unit is made of two hemispherical shells held together by pressing them with force F see figure F is proportional to...
- Q A hollow metallic sphere is charged Inside the sphere A The potential is zero but the electric field is finite B The electric field is zero but the potential is...
- Q 15 Two charge q and 3q are placed fixed on x axis separated by a distance d Where should a third charge 2q be placed such that it will not...
- Q 36 A circular disc of radius r is placed along the plane of paper A uniform electric field E is also present in the plane of paper What amount of...
- Q Point charges 9 4 C and 9 2 C are kept at point x 0 and x 4 respectively electrical potential will be zero at points where x is in...
- Q 60 In the rectangle shown below the two corners have charges 91 5 C and q2 2 0 C The work done in moving a charge 3 0 C from...
- Q Three pairs of large conducting plates are charged to different potentials as shown in figure The separation between each pair of plates is same Rank the pair of plates according...
- Q Figures below show regular hexagons with charges at the vertices In which of the following cases electric field at the centre is not zero Question Type Single Correct Type 1...
- Q A solid conducting sphere of radius a is surrounded by a thin uncharged concentric conducting shell of radius 2a A point charge q is placed at a distance 4a from...
- Q The electric field in x y plane is given by E x i y2j Potential at point 3 3 is taken as zero Then A Work done in moving a...
- Q An electric dipole consists of charges 2 10 8 C separated by a distance of 2 mm It is placed near a long line charge of density 4 0 10...
- Q A long straight wire Wire 1 carries a current such that a magnetic field is created around it as shown below in Figure Q2a You may assume that its length...
- Q on the sides of an equilateral 8 A charge Q is spread uniformly in the form of a line charge density COR 3a triangle of perimeter 3a Calculate the potential...
- Q 8 A spherical charge distribution with a volume charge density p and radius R contains a spherical cavity where there are no charges as shown in the figure If the...
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