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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-PX-OA-0011 markL1 FoundationCalculatorAmplifiers
An inverting amplifier has Rf=100R_f=100 kΩ and Rin=10R_{in}=10 kΩ. Calculate its voltage gain.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-OA-0021 markL1 FoundationCalculatorAmplifiers
An input of 0.200.20 V is applied to that amplifier. Calculate the output voltage.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-OA-0031 markL1 FoundationCalculatorAmplifiers
A non-inverting amplifier has Rf=90R_f=90 kΩ and R1=10R_1=10 kΩ. Calculate its gain.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-OA-0061 markL1 FoundationCalculatorComparators
An op-amp used as a comparator has V+=2.0V_+=2.0 V and V−=1.5V_-=1.5 V. Its output is
Choose one option

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-OA-0081 markL1 FoundationCalculatorComparators
An ideal op-amp has
Choose one option

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-OA-X011 markL1 FoundationCalculatorAmplifiers
Calculate the gain of an inverting amplifier with Rf=20R_f=20 kΩ and Rin=5.0R_{in}=5.0 kΩ.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-OA-X021 markL1 FoundationCalculatorAmplifiers
Calculate the gain of a non-inverting amplifier with Rf=40R_f=40 kΩ and R1=10R_1=10 kΩ.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-OA-X031 markL1 FoundationCalculatorAmplifiers
An input of 0.500.50 V is applied to that non-inverting amplifier. Calculate the output.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-OA-0042 marksL2 StandardCalculatorAmplifiers
A summing amplifier has Rf=R1=R2=10R_f=R_1=R_2=10 kΩ. Inputs are 1.01.0 V and 2.02.0 V. Calculate the output.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-OA-0051 markL2 StandardCalculatorAmplifiers
An inverting amplifier with gain −50-50 and supply ±12\pm12 V has an input of 0.400.40 V. State the output voltage.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-OA-X042 marksL2 StandardCalculatorAmplifiers
A summing amplifier has Rf=20R_f=20 kΩ, R1=10R_1=10 kΩ with V1=0.50V_1=0.50 V, and R2=20R_2=20 kΩ with V2=1.0V_2=1.0 V. Calculate the output.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-OA-0072 marksL3 ExamCalculatorAmplifiers
An op-amp has a gain–bandwidth product of 1.01.0 MHz. Calculate the bandwidth, in kHz, when it is used with a gain of 100100.

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Salam Academy Original Practice · Proposed mark scheme