Basic Op Amp Applications – 3

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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

Answer

Answer : (a)

Explanation

Explanation : No answer description available for this question. Let us discuss.

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Basic Op Amp Applications - 10
555555555510. The output impedance of a voltage buffer is ________. (a) very low (b) low (c) high (d) very high
Tags: low, high, basic, op, amp, applications, impedance, electronics, engineering
Basic Op Amp Applications - 9
55555555559. The input impedance of a voltage buffer is ________. (a) very low (b) low (c) high (d) very high
Tags: low, high, basic, op, amp, applications, input, impedance, electronics, engineering
Basic Op Amp Applications - 22
555555555522. Determine the value of Rf (assuming that all have the same value). (a) 500 k (b) 50 k (c) 25 k (d) 5 k
Tags: basic, op, amp, applications, electronics, engineering
BJT - 31
555555555531. What is the ratio of IC to IE? (a) DC (b) DC / (DC + 1) (c) DC (d) either DC / (DC + 1) or DC, but not DC
Tags: dc, electronics, engineering
Transistors - 68
Transistors » Exercise - 2 68. The input impedance of a transistor is ...... (a) high (b) low (c) very high (d) almost zero
Tags: high, input, impedance, low, electronics, engineering

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