Question 1

The process by which one form of energy is converted into another form is called

Accepted Answer

A)  torque 
B)  work 
C)  heat 
D)  power 
A)  torque 
B)  work 
C)  heat 
D)  power

Question 2

How much energy is supplied to a 2000-W circuit over a period of 10 min?

Accepted Answer

A)  1.2 MJ 
B)  20 kJ 
C)  1.2 W/min 
D)  20 kW/s 
A)  1.2 MJ 
B)  20 kJ 
C)  1.2 W/min 
D)  20 kW/s

Question 3

The 'losses' of a motor, or any other electrical machine, is equal to

Accepted Answer

A)  its input power minus its output power 
B)  its output power minus its input power 
C)  its input power divided by its output power 
D)  its output power divided by its input power 
A)  its input power minus its output power 
B)  its output power minus its input power 
C)  its input power divided by its output power 
D)  its output power divided by its input power

Question 4

The SI unit for the rate of doing work is the

Accepted Answer

A)  newton metre 
B)  watt hour 
C)  joule 
D)  watt 
A)  newton metre 
B)  watt hour 
C)  joule 
D)  watt

The process by which one form of energy is converted into another form is called

How much energy is supplied to a 2000-W circuit over a period of 10 min?

The 'losses' of a motor, or any other electrical machine, is equal to

The SI unit for the rate of doing work is the

The Electron Theory of Electricity

Electric Current

Potential and Potential Difference

Resistance

Practical Conductors and Insulators

Effect of Temperature Change Upon Resistance

Ohms Law of Constant Proportionality

Series, Parallel and Series-Parallel Circuits

Cells and Batteries

Internal Resistance of Voltage Sources

Magnetism

Electromagnetism

Magnetic Circuits

Electromagnetic Induction

Capacitors and Capacitance

Introduction to Alternating Current

Series Alternating-Current Circuits

Power in Alternating-Current Circuits

Parallel Alternating-Current Circuits

Power Factor Improvement

Balanced Three-Phase Ac Systems

Filters

Exam 11: Energy, Work, Heat and Power

The process by which one form of energy is converted into another form is called

How much energy is supplied to a 2000-W circuit over a period of 10 min?

The 'losses' of a motor, or any other electrical machine, is equal to

The SI unit for the rate of doing work is the

The Electron Theory of Electricity

Electric Current

Potential and Potential Difference

Resistance

Practical Conductors and Insulators

Effect of Temperature Change Upon Resistance

Ohms Law of Constant Proportionality

Series, Parallel and Series-Parallel Circuits

Cells and Batteries

Internal Resistance of Voltage Sources

Magnetism

Electromagnetism

Magnetic Circuits

Electromagnetic Induction

Capacitors and Capacitance

Introduction to Alternating Current

Series Alternating-Current Circuits

Power in Alternating-Current Circuits

Parallel Alternating-Current Circuits

Power Factor Improvement

Balanced Three-Phase Ac Systems

Filters