Physics question and answers for January 21, 2024
- Q A 25 nC charge is moved from a point where V = 170 V to a point where V=-110 V. How much work is done by the force that...
- Q A +1.70 ?C point charge is sitting at the origin.What is the radial distance between the 500 V equipotential surface and the 1000 V surface?Express your answer with the appropriate...
- Q A charge of -2.65 nC is placed at the origin of an zy-coordinate system, and a charge of 1.65 nC is placed on the y axis at y = 3.60...
- Q Consider a square surface of side 2a, a circular area is removed from the square symmetrically of radius a, A charge q is placed at distance a on the axis...
- Q Consider a charged parallel-plate capacitor. How can its capacitance be halved?Check all that apply.Double the charge.Double the plate area.Double the plate separation.Halve the charge.Halve the plate area.Halve the plate separation.
- Q Calculate the induced dipole moment per unit volume (polarization density) of helium gas when it is placed in a field of 6 x 105 V/m. The atomic polarizability of helium...
- Q An unknown charge is placed into an electric field 3.85 x 106 N/C East. This results in an electric force of 8.57 x 103 N West. What is the net...
- Q In Gauss's theorem ?E.ds=q/? The surface integral is evaluated by choosing a closed surface called the Gaussian surface. Here(A) The closed surface can be of any shape or size(B) q...
- Q A small cork with an excess charge of +5.0 ?C is placed 0.21 m from another cork, which carries a charge of -3.2 ?C. What is the magnitude of the...
- Q In the figure particles 2 and 4, of charge -e, are fixed in place on a y axis, at y? = -8.12 cm and y4 = 4.06 cm. Particles 1...
- Q A point charge of +4.0 ?C is held fixed at the origin. A second charge of -4.0 ?C and mass 3.6 x 10^-2 kg is placed on the axis and...
- Q Three conducting spheres are electrically-charged. Sphere X is attracted to a negative Van De Graaff generator. Sphere Y is repelled by Sphere X. Sphere Z is attracted to Sphere Y....
- Q 4. a. If an electric field with magnitude 9,000 N/C is created 0.2 meters from a pointcharge, what is the magnitude of the charge?b. What magnitude of force would a...
- Q What is the electric field strength at a point in space where a proton experiences an acceleration of 1.9 million "g's"?Express your answer using two significant figures.
- Q A charged rod can induce a charge on both conducting and insulating materials.Which statement best describes Material A?Material A is a conductor; conducting materials tend to hold electrons in placeMaterial...
- Q Uniform charge of 8.85 x 10-10 C/m is distributed on surface of hollow cone of radius 10cm. Interaction potential energy of cone with a proton placed at vertex of cone...
- Q Three charged conducting metal spheres of radius R?, R2 and R3 are connected together by very thin wires and they are separated by large distances from each other. If R?...
- Q Two insulated charged copper spheres A and B have their centres separated by a distance of 50 cm. What is the mutual force of electrostatic repulsion if the charge on...
- Q Select all the true statements about kinetic energy (KE) and potential energy (PE) from electric fields. Use your knowledge of gravitational fields to help you select.A. If two positively charged...
- Q A -8.0?C charge is located 0.45 m to the left of a +6.0-C charge. What is the magnitude and direction of the electrostatic force on the positive charge?A. 1.1 N,...
- Q 31 Assertion A A point charge is lying at the centre of a cube of each side The electric flux emanating from each surface of the cube is 1 6...
- Q 5a A spherical conducting shell has a charge of 14 C on its outer surface and a charged particle in its hollow If the charge on the shell is 10...
- Q A cube with side a is oriented such that the origin is at one of its corners and the axes as shown The cube is placed in an electric field...
- Q Which statements is true for electric field i An electric field leads to a force ii Electric field for point charge is iii iv ATTFO where q is test charge...
- Q Similar PYQs ques A thin metallic spherical shell of radius R carries a charge Q on its surface A point charge Q 2 is placed at its center C and...
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