Question

Given Vout = 17.33 vpp and R1 = 3 kΩ, find the value of RF required to provide Av = 4.33. (Round your answer to 2 decimal places.) Rf = kΩ. (Round your answer to 2 decimal places.) What is the magnitude of V2? V2 = vpp. What is the phase of V2? Phase = o.

Answer 1

The magnitude of
`V_(2)` is 4 V and phase of input voltage is zero

Step-by-step explanation:

Given:

Output voltage
`V_(out) = 17.33`

Resistance
`R_(1) = 3` kΩ

Voltage gain
`A_(v) = 4.33`

For finding feedback resistance we use gain equation

Gain equation for non inverting op-amp is given by,

`A_(v) = 1+(R_(f) )/(R_(1) )`

`4.33 = 1+ (R_(f) )/(3 k )`

`R_(f)` ≅ 10 kΩ

For finding input voltage we use,

`A_(v) = (V_(out) )/(V_(2) )`

`V_(2) = (17.33)/(4.33)`

`V_(2) = 4` V

The Phase of
`V_(2)` is zero because output voltage phase is 360°

Therefore, the magnitude of
`V_(2)` is 4 V and phase of input voltage is zero