11. The units of capacitance are
A. volts/coulomb
B. coulombs/volt
C. ohms
D. henry/Wb
B. coulombs/volt
12. If three 15 uF capacitors are connected in series, the net capacitance is
A. 5 uF
B. 30 uF
C. 45 uF
D. 50 uF
A. 5 uF
13. If three 10 uF capacitors are connected in parallel, the net capactance is
A. 20 uF
B. 30 uE
C. 40 uF
D. 50 uF
B. 30 uE
14. A dielectric material must be
A. resistor
B. insulator
C. good conductor
D. semi conductor
B. insulator
15. An electrolytic capacitor can be used for
A. D.C. only
B. AC. only
C. both D.C. as well as A.C.
D. none
A. D.C. only
