1. The maximum amount by which the two input bias current may differ is known as

A. Input null current

B. Average input bias current

C. Input offset current

D. None of the mentioned

2. A 741 type op-amp has a maximum input offset current of 200nA dc. What conclusion can be derived from this statement?

{ I_{B1} – Input bias current at inverting input terminal and I_{B2} – Input bias current at non-inverting input terminal}

A. I_{B1} may be larger than I_{B2} by 200nA

B. I_{B2} may be larger than I_{B1} by 200nA

C. I_{io} and I_{B2} may be equal to 200nA

D. All of the mentioned

3. The maximum magnitude of the output offset voltage is

A. V_{OIio} = R_{F}*I_{io}

B. V_{OIio} = R_{F}*( I_{B1}+I_{B2})

C. V_{OIio} = R_{F}*I_{B1}

D. V_{OIio} = R_{F}*( I_{B1}-I_{B2})

4. Find the output offset voltage of a 741 op-amp; If the gain of the non-inverting amplifier is 8.5 and the feedback resistor = 15kΩ? (I_{B}=200nA for 741 op-amp)

A. 1µv

B. 4 µv

C. 3 µv

D. 2 µv

5. Find out the input offset current from the circuit

A. I_{io} = |I_{BA}*I_{BC}|

B. I_{io} = |I_{BA}+ I_{BC}|

C. I_{io} = |I_{BA}/ I_{BC}|

D. I_{io} = |I_{BA}– I_{BC}|

6. Determine the maximum output offset voltage caused by input offset current

A. 5.4mv

B. 7.3mv

C. 6.9mv

D. 8.1mv

7. Find the total output offset voltage of non-inverting op-amp?

A. V_{ooT} = {[1+(R_{F}/R_{1})]*V_{io}} + R_{F}*I_{io}

B. V_{ooT} = -[(R_{F}/R_{1})*V_{io}] + R_{F}*I_{io}

C. V_{ooT} = -[(R_{F}/R_{1})*V_{io}] + I_{io}

D. None of the mentioned

8. Analyse the circuit and determine the value of total output offset voltage?

The op-amp is the MC1536 with the following specifications:

V_{io} = 7.5mv, I_{io} = 5nA, I_{B} =250nA.

A. 0.12v

B. 1.4v

C. 0.76v

D. 8.5v

9. Which factor affects the input offset voltage, bias current, and input offset current in an op-amp

A. Change in temperature

B. Change in supply voltage

C. Change in time

D. All of the mentioned

10. Thermal voltage drift is defined as

A. △V_{io}/△T

B. △V_{F}/△T

C. △I_{io}/△T

D. △I_{B}/△T