Muntaha Nasir ENGINEERING - Electrical Engineering

Which type of memory is used for storing firmware in embedded systems?

A. RAM. B. ROM. C. Flash memory. D. Cache memory.

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Explanation

Flash memory is used to store firmware in embedded systems due to its non-volatile nature and ability to retain data without power.

Muntaha Nasir ENGINEERING - Electrical Engineering

In signal processing, what is the purpose of a digital filter?

A. Amplify signals. B. Reduce noise. C. Convert signals to analog. D. Increase signal power.

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Explanation

Digital filters are used to reduce noise and unwanted components from digital signals, improving signal quality.

Muntaha Nasir ENGINEERING - Electrical Engineering

Which component is essential for converting solar energy into electrical energy in photovoltaic systems?

A. Inverter. B. Battery. C. Solar panel. D. Transformer.

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Explanation

Solar panels convert solar energy into electrical energy, forming the core component of photovoltaic systems.

Muntaha Nasir ENGINEERING - Electrical Engineering

In electrical power systems, what is the purpose of using a capacitor bank?

A. Voltage regulation. B. Current amplification. C. Power factor correction. D. Frequency modulation.

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Explanation

Capacitor banks are used for power factor correction, improving the efficiency and stability of power systems.

Muntaha Nasir ENGINEERING - Electrical Engineering

What is the main advantage of using a brushless DC motor over a brushed DC motor?

A. Lower cost. B. Higher efficiency. C. Simpler control. D. Increased noise.

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Explanation

Brushless DC motors offer higher efficiency, longer lifespan, and lower maintenance compared to brushed DC motors.

Muntaha Nasir ENGINEERING - Electrical Engineering

In the context of electromagnetic waves, what is the primary function of a waveguide?

A. Signal amplification. B. Signal modulation. C. Signal transmission. D. Signal reflection.

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Explanation

Waveguides are used to transmit electromagnetic waves efficiently, guiding them along a specific path with minimal loss.

Muntaha Nasir ENGINEERING - Electrical Engineering

What is the significance of the breakover voltage in a silicon-controlled rectifier (SCR)?

A. Maximum reverse voltage. B. Minimum forward voltage. C. Trigger voltage for conduction. D. Voltage drop across the SCR.

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Explanation

The breakover voltage is the minimum forward voltage at which an SCR conducts, triggering its conduction state.

Muntaha Nasir ENGINEERING - Electrical Engineering

Which method is used to analyze transient response in electrical circuits?

A. Fourier transform. B. Laplace transform. C. Z-transform. D. Bode plot.

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Explanation

The Laplace transform is used to analyze the transient response of electrical circuits, providing insights into system behavior over time.

Muntaha Nasir ENGINEERING - Electrical Engineering

What is the primary function of a thyristor in power control circuits?

A. Voltage regulation. B. Signal amplification. C. High-speed switching. D. Controlled rectification.

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Explanation

Thyristors are used for controlled rectification in power control circuits, allowing precise control of current flow.

Muntaha Nasir ENGINEERING - Electrical Engineering

In power electronics, what is the main purpose of a rectifier?

A. Convert AC to DC. B. Convert DC to AC. C. Increase voltage. D. Decrease current.

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Explanation

Rectifiers convert AC voltage to DC voltage, making them essential in power supplies for electronic devices.