Energy and Power Multiple Choice Questions

Energy and Power

Question 1.

A 220 Ω resistor dissipates 3 W. The voltage is

A.

 73.3 V

B.

 2.5 V

C.

 25.7 V

D.

 257 V

Explanation :

Explanation Not Provided

Question 2.

If you used 400 W of power for 30 h, you have used

A.

 1.3 kWh

B.

 13.3 kWh

C.

 1.2 kWh

D.

 12 kWh

Explanation :

Explanation Not Provided

Question 3.

For 12 V and 40 mA, the power is

A.

 480 mW

B.

 0.480 W

C.

 480,000 µW

D.

 All of the above

Explanation :

Explanation Not Provided

Question 4.

How many watt-hours represent 65 W used for 18 h?

A.

 11.7 Wh

B.

 1,170 Wh

C.

 11,700 Wh

D.

 117,000 Wh

Explanation :

Explanation Not Provided

Question 5.

Energy equals power multiplied by time.

A.

 True

B.

 False

Explanation :

Explanation Not Provided

Topics

Analog Electronics MCQs Automatic Control Systems MCQs Communication Systems MCQs Digital Electronics MCQs Electromagnetic Field Theory MCQs Electromagnetic Induction MCQs Electronic Devices and Circuits MCQs Materials and Components MCQs Measurement and Instrumentation MCQs Microprocessors MCQs Microwave Communication MCQs Networks Analysis and Synthesis MCQs Power Electronics MCQs Radio Receivers MCQs Satellite Communication MCQs A.C Fundamentals, Circuits and Circuit Theory MCQs RL Circuits MCQs RC Circuits MCQs RLC Circuits and Resonance MCQs Circuit Theorems and Conversions MCQs Circuit Theorems In Ac Analysis MCQs Integrated Circuits MCQs Magnetic Circuit MCQs Parallel Circuits MCQs Series Circuits MCQs Series Parallel Circuits MCQs Solid State Switching Circuits MCQs Time Response of Reactive Circuits MCQs Branch, Loop and Node Analyses MCQs Electrical Engineering Materials MCQs Electronics and Instrumentation MCQs Electrical Machine Design MCQs D.C. Generators MCQs D.C. Motors MCQs Capacitors MCQs Current Electricity MCQs Earthing or Grounding MCQs Electric Traction MCQs Electrical Cables MCQs Electrical Control Systems MCQs Electrical Inductors MCQs Electrolysis and Storage of Batteries MCQs Electrostatics MCQs Switchgear Protections MCQs Synchronous Motors MCQs Polyphase Induction Motors MCQs Single Phase Induction Motors MCQs Energy and Power MCQs Economics of Power Generation MCQs Power Plant Engineering in EE MCQs Regulated DC Power Supply MCQs FET(Field Effect Transistors) MCQs Heating and Welding MCQs Hybrid Parameters MCQs Industrial Drivers MCQs Rectifiers and Converters MCQs Magnetism and Electromagnetism MCQs Modulation and Demodulation MCQs Ohms Law MCQs Transistors MCQs OP amp MCQs Single Stage Transistor Amplifiers MCQs Multistage Transistor Amplifiers MCQs Transistor Audio Power Amplifiers MCQs Amplifiers With Negative Feedback MCQs Passive Filters MCQs Oscillators MCQs Voltage, Current and Resistance MCQs Alternating Current and Voltage MCQs Semiconductor Theory MCQs Semiconductor Diode MCQs Silicon Controlled Rectifiers MCQs Three Phase Systems In Power Applications MCQs Transformers MCQs Transmission and Distribution MCQs