6. The voltage gain of a basic instrumentation amplifier is set by a(n)
(a) diode.
(b) capacitor.
(c) resistor.
(d) inductor.
7. A basic ________ amplifier is formed by three op-amps and seven resistors.
(a) instrumentation
(b) isolation
(c) log
(d) antilog
8. A log amplifier may use the ________ junction of a BJT in the feedback loop.
(a) base-collector
(b) base-emitter
(c) emitter-collector
(d) emitter-ground
9. A current-to-voltage converter produces a
(a) constant output voltage for a variable input current.
(b) variable output voltage for a constant input current.
(c) proportional output voltage for a variable input current.
(d) proportional output current for a variable input voltage.
10. A constant-current source delivers a load current that
(a) remains constant when the load resistance changes.
(b) varies with load resistance.
(c) varies inversely with load resistance.
(d) varies inversely with input voltage.
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