Problem 2 (5 points) Circle the best answer.
The combined value of three inductors in parallel is:
i. LO = L + L + L
ii. L + L + Lg
iii. Lq + Lz + Lg
iv. L1L2L
What is the impedance, Z, of a 100 H inductor excited by a source at 10x10^6 rad/sec.
i. 1000
ii. -j1000
iii. +j1000
iv. 1000+j1000
v. j1000m
c. A certain circuit requires an op-amp with a gain of -50. This is best done using:
i. A voltage follower (buffer) connected to a summer.
ii. A summer alone.
iii. A non-inverter alone.
iv. An inverter alone.
v. A non-inverter connected to an inverter.
d. Current is the flow of electrical:
i. Charge
ii. Voltages
iii. Energy
iv. Power
v. Inductance
e. For ideal op amps, if the source has a Thevenin resistance, the ideal gain will be reduced due to source loading in the following circuits (choose all that apply):
i. Inverting amplifier
ii. Non-inverting amplifier
iii. Inverting summer
iv. Buffer
