Basic Op Amp Applications » Exercise – 1
1. The level of the output voltage of an op-amp circuit is always ________ the level of VCC.
(a) larger than
(b) the same as
(c) smaller than
(d) None of the above
2. In a current-controlled voltage source using the inverting op-amp circuit, the controlled output current is ________ with the input voltage source.
(a) in phase
(b) 45º out of phase
(c) 90º out of phase
(d) 180º out of phase
3. In a dc millivoltmeter, the amplifier provides a meter with ________ input impedance and a scale factor dependent on ________ value and accuracy.
(a) high, resistor
(b) low, resistor
(c) high, capacitor
(d) None of the above
4. In a current-controlled current source, the controlled current Io depends on ________.
(a) I1
(b) R1
(c) R2
(d) All of the above
5. Op-amps can be used to form ________ circuit(s).
(a) voltage-controlled voltage source
(b) voltage-controlled current source
(c) current-controlled voltage source
(d) All of the above
Related Posts
5555555555191. The input voltage must be ______ in the given circuit to obtain the given output voltage. (a) 343 mV (b) 400 mV (c) 480 mV (d) 600 mV- 5555555555 2. In a current-controlled voltage source using the inverting op-amp circuit, the controlled output current is ________ with the input voltage source. (a) in phase (b) 45º out of phase (c) 90º out of phase (d) 180º out of phase
- 5555555555204. An op-amp circuit in which the output voltage is equal to the difference between the two input voltages is called a(n) _____ (a) integrator (b) differentiator (c) differential amplifier (d) voltage regulator
- 555555555514. Determine the output voltage for this circuit with a sinusoidal input of 2.5 mV. (a) –0.25 V (b) –0.125 V (c) 0.25 V (d) 0.125 V
- 5555555555131. An ideal op-amp circuit has ________input impedance, ________ output impedance, and ________ voltage gain. (a) zero, infinite, infinite (b) infinite, zero, zero (c) zero, zero, infinite (d) infinite, zero, infinite