Two parallel conducting plates are connected to a battery, one plate to the positive terminal and the other plate to the negative. The plate separation is gradually increased, the plates remaining connected to the battery.
Which graph shows how the electric field E between the plates depends on the plate separation x?
A positive charge and a negative charge of equal magnitude are placed a short distance apart.
Which diagram best represents the associated electric field?
An electric field exists in the space between two charged metal plates.
Which of the following graphs shows the variation of electric field strength E with distance d from X along the line XY?
The diagram shows two metal plates P and Q between which there is a potential difference of -700 V. Plate Q is earthed.
What is the magnitude and direction of the electric field at point R?
The electric field strength between a pair of parallel plates is E. The separation of the plates is doubled and the potential difference between the plates is increased by a factor of four.
What is the new electric field strength?
Responda
A E
B 2E
C 4E
D 8E
Questão 8
Questão
Which diagram represents the electric field of a negative point charge –q?
A potential difference V is applied between two parallel plates a small distance d apart, and produces an electric field of strength E between the plates.
What is the electric field strength between the plates when both V and d are doubled?
Responda
A E/4
B E
C 2E
D 4E
Questão 10
Questão
In the circuit below, the distance between the two parallel plates is 2.0 × 10^–3 m. An electron is situated between the plates.
What is the force on the electron?