Curriculum
Course: Igcse Physics
time left:
:
:
Login

Curriculum

Igcse Physics

1. Motion, Forces and Energy

0/161 Dr Dabour Hub Science Diagram and Course Material

2. Thermal Physics

0/75 Dr Dabour Hub Science Diagram and Course Material

3. Waves

0/77 Dr Dabour Hub Science Diagram and Course Material

4. Electricity and Magnetism

0/119 Dr Dabour Hub Science Diagram and Course Material

5. Nuclear Physics

0/39 Dr Dabour Hub Science Diagram and Course Material

6. Space Physics

0/47 Dr Dabour Hub Science Diagram and Course Material
Quiz

4.4.8 Transformers – Check yourself

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
A transformer only works with
direct current
neither
either
alternating current
2.
A step-up transformer has
more turns on the primary than the secondary
more turns on the secondary than the primary
equal turns
no core
3.
Why is the core laminated?
To make it lighter
To increase resistance of the coils
To reduce eddy currents
To make it magnetic permanently
4.
The reason for transmitting electricity at high voltage is to
increase current
increase power
reduce current and so power loss in cables
reduce the voltage at homes
5.
The core of a transformer is made of soft iron because it
is easily magnetised and demagnetised
is cheap and heavy
conducts electricity well
is magnetic permanently
6.
A step-up transformer gives a higher voltage than the input. The current in the secondary is
higher than the primary current
zero
the same
lower than the primary current
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
Part of 4. Electricity and Magnetism — see every lesson and quiz in this unit.
Accepted payment methods