Electrical electronic aptitude test 2
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This document contains 16 multiple choice questions testing electrical and electronic concepts including: calculating resistance of circuits using Ohm's law, determining equivalent resistances of series and parallel circuits, calculating capacitance of series and parallel capacitors, transformer principles including turns ratios and voltages, and calculating percentage error. The questions cover topics like resistors, capacitors, series and parallel circuits, transformers, and applying Ohm's law.
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![Electrical/Electronic Aptitude. Test 2
6. Two capacitors of 100 F each are connected in series. The effective capacitance is
a. 200 F
b. 100 F
c. 50 F
d. 25 F
7. A voltage of 240 V is applied across two resistors, 1R and 2R in series. If the voltage
across 2R equals 110 V, how much is the voltage across 1R ?
a. 350 V
b. 240 V
c. 130 V
d. 110 V
8. 120-V source is connected across three resistors 1R , 2R and 3R .The resistors are
connected in parallel. If 1R = 2R = 3R , what is the voltage across 2R ?
a. 240 V
b. 120 V
c. 60 V
d. 40 V
[Questions 8 and 9]
An electric iron is rated for 1000 W and is to be operated form a 220 V supply.
9. What is the resistance of the iron
a. 48.4
b. 32
c. 22
d. 12
10. What is the current drawn by the iron?
a. 10 A
b. 7.5 A
c. 5.2 A
d. 4.55 A
11. Two resistors of 10 and 15 , each respectively are connected in parallel. The
two are then connected in series with a 5- resistance. It is then connected across a
12-V battery. What are the current and power drawn
a. 1.5 A , 20.25 W
b. 1.2 A , 17.28 W
c. 1.09 A , 13.1 W
d. 0.06 A , 11.52 W](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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