Interview Question in Voltage, Current, and Power
Interview Question :: I really need some help with these Electronics questions. Please Help Continued
7.If there is 100 mA of current flowing into a three-branch parallel circuit and two of the branch currents are 40 mA and 20 mA, the third branch current is........
a. 60 mA
b. 40 mA
c. 160 mA
d. 20 mA
8. In the parallel portion of series-parallel circuits, the total resistance is........
a. equal to the smallest resistance
b. less than the smallest resistance
c. less than any one resistance
d. greater than the largest resistance
9. Which one of the statements below does NOT apply to the voltage inducd into a wire when it is moved through a magnetic field?
a. It depends on the current flowing in the wire
b. It depends on the strength of the magnetic field
c. It depends on the speed of wire motion
d. It depends on the length of moving wire in the field
10. The amount of voltage that is induced in a conductor depends on the.......
a. length of time a conductor remains stationary in the magnetic field
b. direction of the current flowing
c. length of the conductor in the magnetic field
d. direction of motion of the conductor in the magnetic field
11. In a two-source circuit, one source alone produces 10 mA through a branch. If the other source alone produces 8 mA in the opposite direction through the same branch, what is the total current through the branch?
a. 18 mA
b. 2 mA
c. 10 mA
d. 8 mA
12. In solving series-parallel circuits, the last and easiest to solve for is......
a. IT
b. PT
c. RT
d. ET
13. An ohmmeter should.......
a. be inserted into the circuit so the current flows through it
b. have the polarity carefully checked before its use
c. be connected across a circuit with the power on
d. be placed across the resistor after the resistor has been disconected from the circuit
14. Add 21 mA and 8000 ua and express the result in milliamperes.
a. 29 mA
b. 218 mA
c. 290 mA
d. 21.8 mA
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