Advertisements
Advertisements
Question
How does a magnetic field set up by a solenoid change when a soft iron core is inserted inside solenoid?
Advertisements
Solution
By placing a soft iron core inside the solenoid, the magnetic field becomes more intense.
APPEARS IN
RELATED QUESTIONS
State two ways of magnetising an iron piece?
Tick the most appropriate answer.
Which of the following methods is used to magnetize a magnetic without touching it by a magnet?
State three uses of an electromagnet?
What is an electromagnet?
Describe briefly one way of producing an induced current in a coil. State one factor that determines the magnitude of induced e.m.f.
How does a magnetic field set up by a solenoid change when strength of current in the solenoid is decreased?
Why is soft iron generally used as the core of the electromagnet?
What is a permanent magnet? Give one use of it.
What are the factors that govern the magnitude of force acting on a current carrying conductor which is freely suspended in a magnetic field?
State the function of a split ring in D.C. motor.
