4.2. Electrical quantities
A subsection of Physics, 5054, through 4. Electricity and magnetism
Listing 10 of 319 questions
Two metal spheres P and Q are mounted on insulating stands and are touching each other. They are uncharged. A positively-charged metal sphere on an insulating handle is brought close to P but does not touch it. This induces charges on P and Q. P Q positively-charged metal sphere The positively-charged metal sphere is held in this position and sphere Q is moved to the right, away from sphere P. What are the signs of the induced charges on P and Q and how do the sizes of these charges compare?
5054_s10_qp_11
MCQ
2010
Paper 1, Variant 1
View
Two metal spheres P and Q are mounted on insulating stands and are touching each other. They are uncharged. A positively-charged metal sphere on an insulating handle is brought close to P but does not touch it. This induces charges on P and Q. P Q positively-charged metal sphere The positively-charged metal sphere is held in this position and sphere Q is moved to the right, away from sphere P. What are the signs of the induced charges on P and Q and how do the sizes of these charges compare?
5054_s10_qp_12
MCQ
2010
Paper 1, Variant 2
View
shows two charged metal spheres. One sphere has a positive charge and the other sphere has a negative charge. + + + + + + + + – – – – – – – – On , draw the electric field between the two spheres. The negative charge on the sphere is removed and a wire is used to connect the positive sphere to earth. The charge on the positive sphere decreases from 4.8 × 10–9 C to zero in a time of 2.0 × 10–6 s. Calculate the average current in the wire. current =
5054_s12_qp_22
THEORY
2012
Paper 2, Variant 2
View
Questions Discovered
319