Multiple Choice
A parallel-plate capacitor with plate area A and plate separation d has a capacitance of 4 μF with the gap between the plates unfilled.The gap is then filled with two dielectric materials,one with dielectric constant 2 and the other one with dielectric constant 6.Each slab of dielectric has area A and thickness d/2,the layering of the dielectrics resulting in the gap being completely filled.Which of the following combinations of capacitors will have the same capacitance as the newly filled parallel-plate one?
A) two capacitors in parallel,one with capacitance of 8 μF and the other with capacitance of 24 μF
B) two capacitors in series,one with capacitance of 8 μF and the other with capacitance of 24 μF
C) two capacitors in parallel,one with capacitance of 16 μF and the other with capacitance of 48 μF
D) two capacitors in series,one with capacitance of 16 μF and the other with capacitance of 48 μF
E) two capacitors in parallel,one with capacitance of 8 μF and the other with capacitance of 48 μF
Correct Answer:
Verified
Correct Answer:
Verified
Q51: Equipotential surfaces around a point charge are<br>A)spherical.<br>B)cylindrical.<br>C)planar.<br>D)none
Q52: At what distance from a point charge
Q53: A proton (+1.6 × 10−<sup>19</sup> C)moves 20
Q54: In which case does an electric field
Q55: How much charge can be placed on
Q57: What is the equivalent capacitance between points
Q58: A pair of parallel plates,forming a capacitor,are
Q59: Increasing the separation of the two charged
Q60: Two capacitors with capacitances of 1.5 μF
Q61: Increasing the voltage across the two plates