Parallel-Plate Capacitor: Two large closely-spaced parallel metal plates are uniformly and oppositely charged and the electric field between them is 7.6 × 106 N/C.(a) What is the charge per unit area on each plate?(b) If the plates are now moved two times farther apart, what is the electric field between the plates?
What will be an ideal response?
(a) ±67 µC/m2 (b) 7.6 × 106 N/C (unchanged)
You might also like to view...
The surface area of Antarctica is 13.2 million square kilometers. If 1 acre is equivalent to 4047 
what is the surface area of Antarctica in acres?
a. 
b. 
c. 
d. 
e. 
f. 
The Sun's life time is 10 billion years. About how long is the lifetime of a star with a star has a mass of 10 MSun and a luminosity of 10,000 LSun?
A) 1 million years B) 100 billion years C) 100 trillion years D) 10 million years
The brightest stars of a young open cluster will be:
A) Cepheid variables. B) massive blue main sequence stars. C) red giants. D) yellow main sequence stars like the Sun. E) T Tauri variables.
The L = 4 orbital number admits how many "orientations" of the orbital angular momentum vector?
A) 8 B) 1 C) 5 D) 4 E) 9